History Characters / ArknightsEnemyIndex

!!! Followers of the Damazti (Introduced in Episode 12)

* TheSneakyGuy: These Sarkaz soldiers take after the Damazti Cluster's penchant for infiltration, being composed of spies and soldiers trained in the Damazti's Arts.

! Siesta Units
!!! Siestan security force (Introduced in ''Heart of Surging Flame'')
[[folder:Infantry]]
->'''Other variations:''' Infantry Leader
Basic soldiers, equipped with special armor designed to mitigate Arts damage.

* AntiMagic: Their armor is designed to give them protection against Arts, which is evident considering they have 40 RES compared to a normal soldier's 0.
* PaletteSwap: Of Reunion Soldiers, albeit packing higher overall stats.

[[folder:Sniper]]
->'''Other variations:''' Sniper Leader
Long-ranged soldiers armed with sniper rifles. Every third shot of theirs will stun the target.
----
* TranquilizerDart: Implied to be how they stun operators.
* StatusEffects: Stun, on every third shot. Unlike the Defense Crushers, these guys don't even have the decency to get up close and stun your operators.

[[folder:Agent]]
Sword-wielding casters that can deal melee Arts damage. They will temporarily reduce the block count of operators struck by their attacks.
----
* MagicKnight: They're casters who just happen to favor melee combat.
* StatusEffects: They can inflict a unique debuff that temporarily reduces the block count of any operators they strike by 1. This is especially annoying, as it allows them and other enemies to slip through your lines more easily, and renders single-block units all but pointless. Fortunately, it doesn't stack, but an Agent can permanently keep this active on whoever they're attacking.

[[folder:Shielded Guard]]
->'''Other variations:''' Shielded Guard Leader
Soldiers that wield swords and shields, which allow them to soak up physical damage.
----
* PaletteSwap: Of Light-Armored Soldiers, the only difference being their slightly lower ATK.

[[folder:Ergate]]
->'''Other variations:''' Ergate Leader
Engineers that cannot be blocked by operators.

* PaletteSwap: Of the garden variety Wraiths. Their only difference is that the Ergates have slightly more RES.

[[folder:Authorized Caster]]
->'''Other variations:''' Authorized Caster Leader
Casters that have been specifically adapted for military service.
----
* PaletteSwap: Of Reunion Casters, albeit packing higher overall stats.

[[folder:Rockbreaker]]
->'''Other variations:''' Rockbreaker Leader
Melee soldiers who have high HP and use their axes to inflict heavy damage. While their defense is low, their special armor gives them significant Arts resistance, which will greatly increase if they're blocked.
----
* AchillesHeel: Inverted compared to most of the enemies similar to them. Despite their high health and colossal Arts resistance, their DEF is ''pitiful'', with both the regular and leader variants having only ''100 DEF'' (for reference, that's the same DEF as a basic Reunion Soldier).
* AntiMagic: Their Arts resistance is already significant for a heavy unit, but their armor will generate an Arts shield to protect them further when they're blocked. Considering that they have 40 RES already, which increases to ''80 (90 if it's a Leader)'', Arts damage often does little to nothing against them. Fortunately, their physical defense is extremely low.
* MightyGlacier: Slow, tough, and capable of dealing huge damage. Unlike most of the SmashMook variants the game has to offer, these guys are supremely resistant to Arts too, although their physical defense takes a huge hit as a result.

[[folder:Heavy Defender Type N]]
->'''Other variations:''' Heavy Defender Type S
Heavily armored soldiers with significant HP and DEF.
----
* PaletteSwap: Of the Reunion Heavy Defenders, albeit packing higher overall stats.

!!! Little Black Sheep (introduced in ''So Long, Adele'')

[[folder:General]]
* PiecesOfGod: These are clones of Dolly that developed their own personalities, not unlike the [[spoiler:Sui siblings]]. The finale of "So Long, Adele" reveals that [[spoiler:their personalities are copies of people that Dolly deemed "interesting" during his long life.]]
* KillerRabbit: Despite looking like cute pink-colored sheep, these guys are actually deadly and are just as capable in doing damage to your operators.
* RidiculouslyCuteCritter: They are literally ''pink sheep''.
* StickyFingers: Some of the familiars carry man-made items that they picked up off the street or looted from human shops, and Eyjafjalla spent a while in "So Long, Adele" chasing down one that stole random items from other people. Dolly even lampshades it early into the event.
-->''You're going to humiliate me. Don't tell people my clones are kleptomaniacs.''

[[folder:Hot Spring 'Mischievous Rascal']]
->'''Other variations:''' Hot Spring 'Jolly Rascal'
A sheep familiar wearing a traffic cone. Spawns a Carmine Steam on the spot when defeated.

[[folder:Fashion Street 'Hearty Heavy']]
->'''Other variations:''' Fashion Street 'Robust Heavy'
A sheep familiar carrying a frisbee. Has a ranged attack and also spawns a Carmine Steam on the spot when defeated.

[[folder:Fashion Street 'Ordinary Aviator']]
->'''Other variations:''' Fashion Street 'Hyperactive Aviator'
A sheep familiar wearing aviation gear. Has Low-Altitude Hovering and even though they have no attack by themselves, they can grab on a 'Hearty Heavy' to gain a ranged attack.

* AchillesHeel: Disabling status effects (stun, frozen, sleep) will cause the Aviator to lose its Low-Altitude Hovering, becoming a ground unit that uses a melee attack when blocked. This also disables its ability to carry Hearty Heavies.
* DisneyDeath: Their path in some operations take them over bottomless pits, which can result in the Aviator and its potential Heavy passenger falling to their doom if it receives a disabling status effect while over the pit.
* MaybeMagicMaybeMundane: They are often mistaken for pink clouds by Siestans, leading to legends of pink clouds surrounding the volcano that were often dismissed as exaggerations.

[[folder:Hot Spring 'Wandering Vagrant']]
->'''Other variations:''' Hot Spring 'Wandering Slider'
A sheep familiar wearing skating equipment. Has invisibility, and can carry a 'Mischievous Rascal' on them which also gives them the ability to spawn Carmine Steam on tiles that they pass through.

* TheSneakyGuy: They are invisible until blocked.

[[folder:'Big Fella']]
->'''Other variations:''' 'Big Man'
A large fluffy critter that sometimes unintentionally eats its own kin. Spawns a 'Mischievous Rascal' on first attack, or when defeated.

* BigEater: Is not picky with what it eats, to the point that it will sometimes eat the other familiars and then spit them back out as ammo for their attacks.

[[folder:Urban 'Whirlwind Walker']]
->'''Other variations:''' Urban 'Tornado Trendsetter'
Two familiars that got entangled with each other from fighting over cotton candy. Explodes on first attack to deal Arts damage, leaving behind a 'Mischievous Rascal' and a 'Hearty Heavy'.

* ActionBomb: Blows up on the first time they attack, dealing Arts damage to whoever is unlucky enough to block them. And unlike some other enemies that also explode on death (i.e. infused Originium slugs), this ''cannot'' be stopped using Silence status effect.
* FlunkyBoss: Spawns a 'Mischievous Rascal' and a 'Hearty Heavy' after death.
* StickyFingers: Both literally (cotton candy is ''sticky'') and also figuratively from their flavor text.
-->''The main reason the Candy House grandpa is so angry is because they snatched his wig off too!''

[[folder:'Fluffy Buddy']]
A sheep familiar that hides in the map. Appears as a blur of blue static until covered in Steam, at which point they explode and either heal or inflict Arts damage, plus leaving behind more Steam of the same color.

* HelpfulMook: If covered in Pure White Steam, they will heal your operators and leave behind more Pure White Steam. They will explode for Arts damage if covered in Carmine Steam, however.

[[folder:Fashion Street 'Stellar Caster']]
->'''Other variations:''' Fashion Street 'Supernova Caster'
A sheep familiar carrying a witch's gear from a divination shop. Attack up to three operators at a time if standing in Carmine Steam.

! Lungmen & Siracusan Units
!!! Siracusan Mafia & Lungmenites (Introduced in ''Code of Brawl'')

[[folder:Sicilian]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_031.png]]
->'''Other variations:''' Elite Sicilian
Basic soldiers who serve in the Siracusan mafia.

[[folder:Brawler]]
->'''Other variations:''' Elite Brawler
Siracusan mafiosi who launch flurries of rapid-fire punches.
----
* DeathOfAThousandCuts: Each of their individual punches deal very little damage. The real danger is the sheer rate at which they land these hits on your operators, and with enough of them mobbing your units at once, not even dedicated tanks can survive without some serious Medic support.
* EvilCounterpart: Of Beehunter. In fact they share the same animation frames with her.
* HelpfulMook: With some high level strategy, these enemies can be abused by forcing them to attack Liskarm, who feeds SP to your operators when she gets hit. This is a very effective strategy on some harder stages, such as Contingency Contract.
* RapidFireFisticuffs: Imagine Beehunter but on the enemy side.

[[folder:Marksman]]
->'''Other variations:''' Elite Marksman
Siracusan mafiosi who use ranged crossbow attacks. They will prioritize attacking Command Terminals.
----
* AutomaticCrossbows: They wield rapid-fire crossbows that even have drum clips.

[[folder:Bully]]
->'''Other variations:''' Bulldozer
Hulking enemies that pack significant HP, ATK, and DEF while charging at relatively fast speeds. They count as three enemies when it comes to being blocked, and operators with less than 3 block will not be able to block them at all.
----
* TheJuggernaut: They count as 3 enemies to block and can easily bypass frontline blockers occupied with {{Mooks}}. Their presence almost necessitates dedicated 3-block operator behind the line just to stop them.

[[folder:Fanatic]]
->'''Other variations:''' Desperate Fanatic
Brutish mobsters that have high HP/ATK/DEF and use their sledgehammers to deliver powerful attacks which can hit ranged tiles. When blocked, they will get a significant ATK boost. Prioritizes attacking Command Terminals.

[[folder:Greytail]]
->'''Other variations:''' Greytail Leader
Hard-hitting mobsters that serve the Rat King. They have a sand shield that massively boosts their DEF while active, and can only be destroyed by a significant amount of Arts damage. Once their shields are down, their speed increases greatly.

* BatterUp: They wield metal bats as weapons.
* DeflectorShields: They will enter combat with a sand barrier that gives them a massive amount of physical defense while active, but can be shattered after taking a certain amount of Arts damage.
* MightyGlacier: While their shields are up, they're borderline immune to physical damage and can soak up Arts while hitting very hard in response, but aren't very fast. Once the shield goes down, this turns into FragileSpeedster, as their speed ''hugely'' increases at the cost of being extremely squishy without their barrier.

!!!Famiglia members (introduced in ''Il Siracusano'')

[[folder:General]]

* BadassInANiceSuit: They all wear suits to go with their ''mafioso'' image.
* DeadlyEuphemism: The effect that occurs on a filled "Blood Ledger" gauge is called "Asset Liquidation", a.k.a. the ''famiglia'' is out for your head.
* {{Hypocrite}}: Even though the civilians are supposedly under their protection (which is why civilians cause the "Blood Debt" to go up by a big chunk when they die), several mooks can also attack civilians themselves and forcing the player to save them.
* TheMafia: These guys put the ones from "Code of Brawl" to shame.
* ThePowerOfHate: Killing certain ''famiglia'' members or civilians will result in "Blood Debt" being accumulated into the "Blood Ledger" gauge. When the gauge is full, all enemies on the field gain a buff and a [[EliteMook Cleaner]] spawns, symbolizing the ''famiglia'' taking revenge on the one messing around with their members and civilians under their protection.
* PurpleIsPowerful: Several units' special ability effects are purple.

[[folder:Famiglia Soldier]]
->'''Other variations:''' Elite Famiglia Soldier
Low-level mafiosi under the orders of their superiors. Increase "Blood Debt" by a small amount on death.

* DeviousDaggers: They wield small knives as personal weapons.

[[folder:Famiglia Crossbowman]]
->'''Other variations:''' Elite Famiglia Crossbowman
Trained snipers armed with crossbows using sophisticated technology. Deal Arts damage during "Asset Liquidation".

* MageMarksman: They deal Arts damage when an "Asset Liquidation" is running.
* WouldNotShootACivilian: Inverted. They prioritize attacking Siracusan Civilians over player controlled units.

[[folder:Famiglia Cleaner]]
->'''Other variations:''' Famiglia Silent Cleaner
Massively powerful Archosaurian hitmen tasked with delivering "regards" towards those that angered the ''famiglia''. Only spawn when "Asset Liquidation" starts and gain massive buffs in its duration.

* EliteMook: They have high base stats plus the bonuses they receive during "Asset Liquidation".
* {{Expy}}: The Famiglia Cleaner is a bald, pale, suit-wearing hitman with a prominent barcode motif, armed with a silver pistol (crossbow) and carrying a silver briefcase. He's a master of stealth and infiltration, being literally invisible to your Operators until blocked. He's an incredibly proficient killer, legendary in the underworld, with a name that everyone knows but only the bravest dare speak. In other words, he's the Terran [[Franchise/{{Hitman}} Agent 47]].
* GatheringSteam: If they are alive when a second "Asset Liquidation" starts, they will gain even more stats over the ones from the first Liquidation that spawned them. If not killed for too long and gain multiple buff stacks, Cleaners can easily slaughter their way through the player's defense lineup.
* LightningBruiser: They walk fast, shoot fast, and their shots will ''hurt'' - being able to one shot high ground operators with lower DEF.
* OptionalBoss: These guys don't appear in the enemy roster by default, but only spawn when the "Blood Ledger" gauge hits maximum. They will still deduct life seals if allowed into a Protection Objective, however.
* TheSneakyGuy: They are invisible until blocked.
* WouldNotShootACivilian: Inverted much like the Crossbowmen, Cleaners will target civilians over player operators.

[[folder:Famiglia Intimidator]]
->'''Other variations:''' Famiglia Terrorizer
Strongmen employed by the ''famiglia'' to intimidate others with their stature and smooth-talking, only resorting to violence as a last resort. Draws fire when alive and increase "Blood Debt" by a large amount when defeated.

* TheBigGuy: They serve as this to the ''famiglia''.
* DrawAggro: Operators will prioritize attacking them over other enemies.
* MartialPacifist: Their description surprisingly paints them as this, valuing one's skill in the Siracusan language over raw violence.
* StoneWall: They have good HP and DEF, though their low RES makes them vulnerable to Arts damage.

[[folder:Famiglia Caster]]
->'''Other variations:''' Elite Famiglia Caster
''Famiglia'' members trained in the use of Originium Arts. They compensate for their mediocre skill at Arts with the ability to rapidly incite hatred. Can stop attacking to speed up the filling of "Blood Debt".

* InTheHood: They wear hoods instead of the top hats seen on other members.

[[folder:Famiglia Limo]]
->'''Other variations:''' Famiglia Luxury Limo
Limos used by the ''famiglia'' for transportation. Spawns 3 Famiglia Soldiers if defeated when blocked.

* FlunkyBoss: If they are defeated when blocked, they leave behind 3 Famiglia Soldiers that continue on the Limo's path.

[[folder:Famiglia Capo]]
->'''Other variations:''' Famiglia Heavy Capo
A [[https://en.wikipedia.org/wiki/Caporegime caporegime]] of the ''famiglia''. Increases "Blood Debt" if any ''famiglia'' member is defeated in a radius around them.

* MagicKnight: They emit noxious smoke that deals Arts damage as their melee attack.
* ThisBananaIsArmed: Their weapon is concealed inside their cigar.

[[folder:Siracusan Civilian]]
Normal civilians that got mixed up into the fighting on the street. Does not deplete Life Seals if allowed to escape, reduce "Blood Debt" when alive but increase it by a large amount on death.

* EscortMission: Players are encouraged to keep them alive since they will reduce "Blood Debt" when alive on the field.
* VideoGameCrueltyPunishment: They do not deduct Life Seals when killed unlike Ursus Civilians. However, their death increases the "Blood Debt" by a huge amount, which can be potentially game-ending if a Cleaner chews through the player's defenses.

! Leithanien Units
!!! Rioters & Mudrock's Squad (Introduced in ''Twilight of Wolumonde'')
[[folder:Leithanien Rebel]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_067.png]]
->'''Other variations:''' Leithanien Rebel Leader
Rioters wielding Arts swords. Their lack of training makes them weaker than the Reunion Arts Guards.
----
* ArmorPiercingAttack: Their Arts damage ignores DEF and targets RES instead.
* MagicKnight: Their swords deal Arts damage.

[[folder:Leithanien Whisperer]]
->'''Other variations:''' Leithanien Psalmist
Extra-long-ranged casters who can also "contest" Gramophones in an attempt to capture them.

* ChainPain: Different from the Sarkaz Casters in that instead of trying to bind and ensnare operators, they would use this to try and take control of Gramophones.
* MagicStaff: Wields one of these, both for ranged Arts attack and to take control of Gramophones.

[[folder:Winterwisp Blood Shaman]]
->'''Other variations:''' Winterwisp Blood Magister
Powerful Leithanian berserkers that pack high stats and potent Arts attacks in exchange for losing HP over time. Upon death, they will explode in a powerful Arts burst that also instantly captures any Gramophones in range.

* ActionBomb: Upon death, they will deal 200% ''Arts'' damage to the surrounding tiles, which can also take complete control of any Gramophones in range.
* LivingOnBorrowedTime: Their HP will slowly drain over time.

[[folder:Mudrock Matterllurgist]]
->'''Other variations:''' Mudrock Matterllurgist Leader
Ranged physical units commanded by Mudrock. They will prioritize foes capturing Gramophones.

[[folder:Mudrock Zealot]]
->'''Other variations:''' Mudrock Zealot Leader
Powerful melee soldiers commanded by Mudrock. They spawn with a shield that protects them from Arts damage, while raising their attack speed and max HP as long as it's active.

* LightningBruiser: As if their attacks don't hurt more than enough already, they will gain an increase in attack speed while their shield is active.
* StoneWall: They are exorbitantly sturdy, with an A in HP, ATK, and DEF. Despite their RES being lower, that is alleviated by the fact that they have a shield which can protect them from Arts damage, and also happens to increase their HP and ASPD as well.

[[folder:Mudrock Colossus]]
->'''Other variations:''' Hexed Colossus
A towering stone behemoth summoned by Mudrock's Arts. They're extremely slow but absolutely powerful - packing high defenses, ''monumental'' HP, and enough ATK to instantly kill most targets.

* AchillesHeel: For all their power, they're extremely vulnerable to the Gramophone turrets found on most of their maps, since they deal Arts damage based on a percentage of the target's max HP - meaning that even with their staggering HP values, they'll die about as fast as any other enemy. Controlling the Gramophones is key to beating levels that they're on - but the problem arises when some of the harder stages [[OhCrap don't give you any...]]
* MightyGlacier: Colossi are ridiculously sturdy and they hit ''incredibly hard'', often enough to OneHitKill all but the toughest Defenders, and even then only leaving them with a bare sliver of health left. The only silver lining is that these things are also slow as molasses, leaving them especially vulnerable to being pelted to death by the capturable Gramophone towers, and Slow-type Supporters can hamstring them even further.
* StoneWall: Ones that are literally made out of stone. These Colossi are obscenely tough, boasting a S+ health rating and B-grade DEF and RES. While they can technically be dealt with using a lot of Arts damage, even the toughest operators constantly wailing on them with their skills would only do ScratchDamage at best. The proper procedure when facing these things is to wield Gramophone towers against them, which are very effective against them owing to their PercentDamageAttack.

!!! Witch King Remnants (Introduced in ''Lingering Echoes'')
[[folder:'Street Layabout']]
->'''Other variations:''' Street Drunk
Armed militants disguised as Infected Afterglow civilians. Deals additional Arts damage to operators not connected to Realigned Flux.

[[folder:'Street Performer']]
->'''Other variations:''' Street Musician
Armed militants disguised as Infected Afterglow civilians. Deals an additional hit to operators not connected to Realigned Flux.

* MusicalAssassin: They carry a triangle to fire off Leithanien Originium Arts, which is casted through music.
----

[[folder:Mass-Produced Colossus]]
->'''Other variations:''' Enhanced Mass-Produced Colossus
An Originium Arts creation designed for breaching through enemy lines. Loses its defenses when standing in Realigned Flux.

* AchillesHeel: They lose 1000 DEF and 50 RES when they are standing in a Realigned Flux line, making operator positioning crucial for defeating them.

[[folder:Spire Caster]]
->'''Other variations:''' Battleworn Spire Caster
Casters employed by the Leithanien army specializing in area-of-effect damage.

* HerdHittingAttack: They attack 2 operators at once, and deal splash damage if their target is not connected to a Realigned Flux.

[[folder:Remnant Violinist]]
->'''Other variations:''' Remnant Principal Violinist
Formerly violinists in the Leithanien capital orchestra, these violinists have spent a long time laying low to conceal their status as followers of the Witch King.

* HerdHittingAttack: Their attacks travel along the Realigned Flux, damaging all operators connected to that Flux for half the damage.

[[folder:Remnant Field Caster]]
->'''Other variations:''' Remnant Elite Field Caster
Formerly composers in the Leithanien capital orchestra, they have turned to researching the Witch King's Originium Arts but without success.

[[folder:Remnant Saxophonist]]
->'''Other variations:''' Remnant Official Saxophonist
These failed musicians tried to bribe their way into the Leithanien capital orchestra, and had lost their sanity in the modern day. All that remains is a desire to rip their enemies apart with their music.

[[folder:Blackwater Originium Slug]]
->'''Other variations:''' Blackwater Originium Slug α
A type of Originium slug that lives in the sewers of Vyseheim.

* AmbushingEnemy: They don't spawn from Incursion Points like normal enemies, but instead pop out of the ground at set points. This can catch players off guard.
* DeadlyGas: These slugs emit a poisonous fume that has a stronger effect on the Infected than the uninfected, though this is not seen in gameplay. Czerny coughs up blood after inhaling the fumes in "Lingering Echoes".

! Sargon Units
!!! Tiacauh Tribe (Introduced in ''Gavial the Great Chief Returns'')

[[folder:Tiacauh Warrior]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_070.png]]
->'''Other variations:''' Tiacauh Guard
Archosaurus melee fighters who will gain additional DEF while being blocked.
----

[[folder:Tiacauh Lancer]]
->'''Other variations:''' Tiacauh Sniper
Archosaurus warriors who throw ranged spear attacks.

* ThrowingYourSwordAlwaysWorks: They throw their spears as their ranged attack.

[[folder:Tiacauh Fanatic]]
->'''Other variations:''' Tiacauh Ripper
Archosaurus warriors who wield acid-coated gauntlets, giving them both fast attack speed and the ability to apply a permanent stacking DEF debuff on targets.

* AntiArmor: Their attacks apply stacked DEF debuffs to their target, much like Acid Originium Slugs.

[[folder:Tiacauh Ritualist]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_071.png]]
->'''Other variations:''' Tiacauh Shaman
Archosaurus casters that use Arts attacks. If they are blocked, they will gain increased DEF and start using melee attacks that deal significantly higher physical damage.

* MagicStaff: Not only can they fire ranged Arts attacks with it, but if they get blocked, they will resort to melee attacks with their staff, dealing ''quadruple physical'' damage to your operators.

[[folder:Tiacauh Shredder]]
->'''Other variations:''' Tiacauh Annihilator
Elite Archosaurus warriors armed with military equipment that gives them higher stats. They can also periodically destroy nearby mushroom or stump tiles, disabling their effects and making it impossible to deploy units there.

* ChainsawGood: Fights with dual buzzsaws.

[[folder:Tiacauh Brave]]
->'''Other variations:''' Tiacauh Champion
The strongest of the Tiacauh warriors who only partake in one-on-one duels. If blocked, they will reduce both their own DEF and that of their target by 70%, draw aggro from the blocker, and become immune to all damage outside of that from their opponent.

* DrawAggro: From whoever's blocking them.
* DuelBoss: Once they are blocked, they will only take damage from the blocking Operator, making it a 1v1 battle.
* DuelToTheDeath: What happens when you try to block one. The Brave/Champion will force the blocking operator into an 1v1, with both forced to attack each other.

!!! Drudge's Mercenaries & Originiutants (Introduced in ''Originium Dust'')

[[folder:Originiutant Puppet]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_originiutantpuppet.png]]

Human remains parasitized and reanimated by Originiutants. Divides into two Originiutant Excrescences on death.

* OurZombiesAreDifferent: They are the first (and only, until the introduction of Dublinn Flamecallers and Flamechaser Guards) true undead unit introduced, as the Possessed Soldiers and Junkmen are half-dead people controlled through Mephisto's Arts.

[[folder:Mutant Sand Beast]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_mutantsandbeast.png]]
->'''Other variations:''' Mutant Sand Beast α

Swift, omnivorous desert beasts trained by the Sargonians as hunting partners, they have become infected with Originiutants. Divides into two Originiutant Excrescences on death, or Tumors if it's an α variant.

* BearsAreBadNews: Its model appears to be based upon a bear, and it's infected with something that seems to be on the same threat level as the [[EldritchAbomination Seaborn]] from ''Under Tides''.

[[folder:Mutant Rock Spider]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_mutantrockspider.png]]
->'''Other variations:''' Mutant Rock Spider α

Sargonian arachnids parasitized by Originiutants. Divides into three Originiutant Excrescences on death, or Tumors if it's an α variant.

* BigCreepyCrawlies: Although they're actually unrelated to the more common Infused Originium Slugs.

[[folder:Mutant Giant Rock Spider]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_mutantgiantrockspider.png]]
->'''Other variations:''' Mutant Giant Rock Spider α

A subspecies of Rock Spider native to Sargon with a bulky abdomen that stores energy, infected by Originiutants. A bulky ranged enemy that continuously spawns Originiutant Excrescences (Tumors if it's an α variant), and explodes into four of them upon death.

* BigCreepyCrawlies: Even bigger and meaner than a regular Rock Spider.
* MookMaker: Spits out an Originiutant Excrescence or Tumor every 5 seconds, which can build up quickly if multiple Giant Rock Spiders are active at once.

[[folder:Originiutant]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_originiutant.png]]
->'''Other variations:''' Originiutant α

A heavily mutated Originium behemoth used as a living weapon. Although they are very slow, their exoskeletons give them ungodly resilience and devastating melee Arts attacks.

* ArmoredButFrail: These beasts have some of the highest mixed defenses in the entire game (comparable to ''Patriot'' of all things), which makes them take very little damage from just about everything. Once you look past that, however, their actual HP is surprisingly low, with even the strongest variant of them having less health than an ordinary Heavy Defender.
* MightyGlacier: They're extremely resilient to all types of conventional damage, and deal massive amounts of Arts damage with each strike. To compensate, they attack very slowly and move even slower.

[[folder:"Redmark" Eradicator]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_redmarkeradicator.png]]
->'''Other variations:''' Elite "Redsign" Eradicator

A camouflaged mercenary sniper who uses extraordinarily lethal attacks from anywhere on the map, but can only attack Operators exposed to a sandstorm.

* EliteMook: Unusually for the infantry presented for "Operation: Originium Dust", these enemies are always categorized as an Elite Enemy, making them the only enemy group to lack a Common Enemy representing the "Redmarks".

[[folder:"Redmark" Infiltrator]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_redmarkinfiltrator.png]]
->'''Other variations:''' Elite "Redsign" Infiltrator, Holographic Illusion, Holographic Illusion [=MK2=]

A mercenary saboteur who spawns a hologram to distract targets upon first taking damage; while the hologram is active, they'll gain negative targeting priority and immunity to blocking, letting them sneak past. They'll also get a significant amount of evasion if they're exposed to a sandstorm.

[[folder:Originiutant Excrescence]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_originiutantexcrescence.png]]
->'''Other variations:''' Originiutant Tumor

Twisted life-forms created by Levi Klitschko's experiments with radiation and Originium, capable of parasitizing others and mutating them. They do not count towards the enemy counter and only spawn from certain other enemies, but swarm en masse and still cause life loss if they escape; the stronger Tumor variant has an additional ability to massively lower the attack speed of any Operator blocking them.

* ZergRush: Their entire modus operandi; especially the Tumors, which can all but paralyze melee Operators.

!!! Integrated Strategies Units (Introduced in ''Ceobe's Fungimist'')

[[folder:Duck Lord]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/e6c0p73zi2j51.png]]
-->'''Race:''' Liberi

A Columbian Liberi entrepreneur who secretly enjoys toying with people from behind the scenes. He's a bonus enemy that doesn't deduct any lives if he gets through your defenses, but he'll give an extra reward if you kill him before he leaves. While he can't fight back, he'll break into a sprint once initially attacked, passing through all Operators sent to block him.

* CowardlyBoss: Can't attack, and will make a break for it the moment that he takes damage.
* MetalSlime: He has unremarkable stats besides reasonably high HP and no means of fighting back, in addition to not causing any life loss if he gets through. However, killing him before he makes a mad dash to the exit point can be difficult if you lack the firepower - hence why he drops a bonus reward if you can take him down in time.
* TheSneakyGuy: Can phase through all units, similar to Wraiths.

[[folder:Gopnik]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_gopnik.png]]
-->'''Race:''' Ursus

An ex-military Ursus hired as a bouncer for the Duck Lord. Like the Duck Lord, he's an optional bonus enemy that can be killed for extra loot. Unlike the Duck Lord, the Gopnik is ''very'' capable of fighting back.

* BearsAreBadNews: He's an Ursus who hits like a truck.
* DumbMuscle: His description outright states that he's very strong but not too bright, and is usually relegated to just carrying the Duck Lord's baggage.
* MetalSlime: While he's designed to be this alongside the Duck Lord, his insanely high combat ability makes him more of a {{Superboss}} than anything.
* MightyGlacier: Incredibly slow but incredibly powerful, packing decent defenses, sky-high HP, and an attack stat strong enough to OneHitKill just about anything.
* NoSell: Can't be stunned.
* OldSoldier: One event in "Phantom and Crimson Solitaire" shows him staring at a photo of himself next to Hellagur during their time in the Ursus Army.
* SpannerInTheWorks: If you are doing the EscortMission to get the second ending of ''Mizuki & Caerula Arbor'', Gopnik spawning has a good chance of foiling your attempt, as his extreme damage is going to kill your escortee, unless you kill him first.
* TragicKeepsake: His old photo with Hellagur, which is available in the second season of Integrated Strategies onwards as the collectible "Worn-out Group Photo".

[[folder:Lost Colossus]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_lostcolossus.png]]

An experimental construct made by a Leithanian caster, which eventually went rogue due to a loophole in its creation. A highly durable powerhouse that can also periodically throw a boulder at a nearby Operator to stun them for an extremely long duration.

* AntiFrustrationFeatures: The Lost Colossus will never use its stun on a target that's already stunned, making it impossible for it to permanently lock an Operator in the stunned status. (Doesn't mean it won't stun a target who ''just'' got unstunned, though.)
* DubNameChange: Judging from the codename "WDG", its original name was Wandering Giant.
* KingMook: A boss variant of Mudrock's Colossi, although this one actually wasn't summoned by her but by a caster from Leithanien ([[PlotHole though its Ceobe's Fungimist mission description says it's a Mudrock Colossus]]; however, its Crimson Solitaire mission description does not say this). Ironically, its stats are all-around lower than the Colossi summoned by Mudrock, but to compensate it now has the ability to Stun operators.
* IdiotBall: Its creator made the Colossus as a "servant"... but he forgot to tell it who it was supposed to serve, leaving it to roam around and destroying everything that crosses his path.
* StatusEffects: Its boulder attack stuns for ''25 seconds'', the longest of any stun in the game.

[[folder:Jetman]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_jetman.png]]

A mysterious man that claims to be a skilled thief and genius, although his actual feats remain dubious. If blocked, he can use his jetpack to go airborne for a few seconds, although it has a cooldown.

* AchillesHeel: Stunning him while in midair will prematurely end his flight. In addition, while he's airborne, he'll take extra damage from Operators on Anti-Air runes.
* JetPack: Carries one made by himself. When it's in use, he can't be blocked and can only be hit by ranged attacks.
* OutsideGenreFoe: Serves as one when fought in Crimson Solitaire. In a mysterious castle filled with a troupe of assassins who can drive people insane, fraught with magic and mystery and illusion... he's just some guy with a jetpack.
* RealAfterAll: Like any bosses whose first appearance was in Ceobe's Fungimist, a gamemode taking place only in Ceobe's head during a MushroomSamba.
* SelfAppliedNickname: Calls himself a "Master Thief".

[[folder:"Forsaken One"]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_forsakenone.png]]

A mine security guard that fell victim to a severe form of Oripathy and was nearly completely assimilated by Originium, turning him into a mindless destroyer with huge power. Uses both ranged and melee attacks, and can gradually gain offensive power as long as he keeps attacking constantly, although it'll decay if he doesn't.

* ApocalypticLog: His entry in the enemy database is written by a RIM Billiton miner who witnessed his attack.
* AndThenJohnWasAZombie: A former security guard turned into a monster due to his infection.
* AutomaticCrossbows: Wields one for his ranged attacks.
* GatheringSteam: Every time this boss attacks, it'll gain 7% ATK and 5 ASPD. This stacks up to ''28 times'' for a total of ''+196% ATK and +140 ASPD'', making it all but impossible to survive a sustained onslaught. Fortunately, the buffs will be reset if he doesn't attack for 4 seconds.

[[folder:Rusthammer Warrior]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_rusthammerwarrior.png]]

The leader of a band of anarchists that abandoned society and live a harsh life in the Terran wastelands. Cannot be blocked, can't be hit for the first minute of his life, and uses hard-hitting, global-ranged physical attacks that will occasionally crit for massive Arts damage.

* CriticalHit: Like Faust, he can fire an arrow every 18 seconds that deals severe damage. Unlike Faust, it deals 300% of his ATK as ''Arts damage'', meaning that even bulky Defenders will have a hard time surviving it.
* NonIndicativeName: His name implies he's just a member of the Rusthammer organization, rather than being the leader.
* PaletteSwap: Of Faust, including having the same battle pose and skillset. The main differences are that the Rusthammer Warrior has higher stats, a shorter invincibility time, a longer cooldown on his critical attack, a more powerful critical that also deals Arts damage, and he cannot summon ballistas. Ironically, Faust's battle theme doesn't play in his map, but in the one with his group's EliteFour, where the Rusthammer Warrior is absent.
* RealAfterAll: Though his first appearance was in Ceobe's Fungimist, a gamemode taking place in Ceobe's head during a MushroomSamba, the appearance of the Rusthammer group in other material implies this.

[[folder:"Frozen Monstrosity"]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_frozenmonstrosity.png]]

A Sami Snowpriest who tried to defend her home from invasion, only to lose her sanity and fall victim to a demonic curse that turned her into an Originium abomination. A possible TrueFinalBoss of ''Ceobe's Fungimist'' who must be killed to get the second ending - a versatile defensive powerhouse who uses both single-target and [=AoE=] Arts which can chill/freeze operators, can't be hurt for some time after her arrival, can summon ice crystal hazards, doubles the redeployment time of all Operators killed or retreated while frozen, and can revives with buffed stats upon her first defeat.

* AllYourPowersCombined: Wields a wide variety of abilities, which are all modified versions of abilities taken from both of [=FrostNova=]'s battles.
* AnIcePerson: Uses ice Arts to deal damage and freeze operators. She can also cast an ice ring to deal heavy freezing damage in a radius around her, which doubles in damage if it hits an Operator that's already frozen.
* GeoEffects: Can summon Originium Ice Crystals like [=FrostNova=], invincible hazards that pulse waves of frost to chill all nearby operators.
* NoGoodDeedGoesUnpunished: For trying to defend her hometown from a demon invasion, she got infected and became a monster due to a curse. With the release of "Expeditioner's Joklumarkar", she likely succumbed to the [[spoiler:Collapsals]] while fighting them in Sami.
* OneDegreeOfSeparation: The description of the Snow Doe miniboss in "Phantom & Crimson Solitaire" implied that Frost Buck and Snow Doe were her bodyguards before she succumbed to TheCorruption and became the monster she is now.
* PaletteSwap: Of [=FrostNova=], basically a faceless recolor of her.
* PowerFloats: Subverted. Despite being visibly floating, she lacks the Low-Altitude Hovering trait and is treated as a normal ground enemy.
* SquishyWizard: Played with. While she does have very low HP, she has a huge ''1500 DEF'' and a staggering ''80 RES'', making it hard to seriously hurt her in the first place.
* TurnsRed: After dying the first time, the Frozen Monstrosity will gradually revive herself and roar back into battle. After reviving, she'll have 30 seconds of invulnerability, +90% ATK, and +50% max HP, so taking her down for good will be a tough task.

[[folder:"Gravestone"]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_gravestone.png]]

Another possible TrueFinalBoss of ''Ceobe's Fungimist'' who must be killed to get the third ending, a ruthless assassin that will stop at nothing to kill their target. In addition to packing high HP, terrifying offensive power, and regenerating shields, he also applies a global debuff that seriously weakens the player's power for his boss battle.

* AmbiguousSituation: It's unclear if Gravestone is actually a real person or just a figment of Ceobe's imagination. Considering that almost all other elements of ''Ceobe's Fungimist'' are surprisingly accurate to Terra's history despite being Ceobe's hallucinations, it makes it all the more surprising that nothing about Gravestone seems to match up with reality. Unlike the Rusthammer Warrior or Frozen Monstrosity (who both turned out to be real figures), his enemy description and questline is also incredibly vague, telling the player nothing about his potential origins outside of a vague connection to the very concept of violence, which then further raises the question of what Gravestone actually is, assuming they're real.
* AreaOfEffect: When not blocked, he'll use a grenade launcher like Skullshatterer to inflict heavy physical area damage from range. Thankfully, unlike Skullshatterer, his grenades don't inflict any DEF penalties.
* BattleAura: Permanently shrouded by an aura of ominous red light.
* DeflectorShields: Periodically, he'll generate (or refresh) a barrier that can absorb damage equal to 10% of his max HP. This must be destroyed before damage can be dealt to him.
* DoubleWeapon: Uses a two-sided blade for his melee attack - and it ''hurts.''
* FieldPowerEffect: For the whole duration of his level, he'll apply a ''severe'' weakening effect - ''halving'' the ATK and DEF of all Operators, doubling all redeployment times, and cutting DP regeneration in half. While it's said to be his effect, it's actually just a quirk of the stage he's fought on - meaning that even killing him won't dispel it.
* MagicalEyeStreamers: Has these, signifying that he's an extremely powerful boss.
* RedEyesTakeWarning: Combined with bright GlowingEyesOfDoom.

!!!Ibut mercenaries (introduced in ''A Walk in the Dust'')

[[folder:Tactical Crossbowman]]
->'''Other variations:''' Tactical Crossbowman Leader

A ranged mercenary who can call in Scrap drones to provide supporting fire on their targets.

[[folder:Tactical Defender]]
->'''Other variations:''' Tactical Defender Leader

Heavily armored mercenaries who can call in Anvil drones to provide defensive support when injured.

[[folder:Anti-Armor Infantry]]
->'''Other variations:''' Anti-Armor Infantry Leader

Mercenaries who carry single-use anti-armor rockets which they launch over long range to deal massive area damage. After they've fired their shot, they will only be able to use melee attacks, but will gain massively increased speed.

[[folder:War Phantom]]
->'''Other variations:''' Legendary War Phantom

The cruelest, most powerful mercenaries, who adopt the title of a legendary mercenary band from long ago. Able to use both Scrap and Anvil drones, and will significantly boost their movement speed while alive.

[[folder:Scrap]]
->'''Other variations:''' Scrap Model-U

An air support drone used by mercenaries, armed with twin grenade launchers that deal area damage and massively reduce the DEF of targets. While it's difficult to hit, it will disappear by itself after some time.

[[folder:Anvil]]
->'''Other variations:''' Anvil Model-B

An air support drone used by mercenaries, able to heal and increase the DEF of all enemies within its range. While it's difficult to hit, it will disappear by itself after some time.

!!!Reclamation Algorithm units (introduced in ''Fire Within the Sand'')

[[folder:Dauntless Linebreaker]]
One of the three possible final bosses of ''Fire Within the Sand'', an advance linebreaker officer under the command of a Sargonian Lord Ameer.

* LightningBruiser: He has a whopping 700000 HP that's doubled across his two phases, halves damage taken when not blocked, and attacks pretty fast with a minimum of 1100 ATK. However, he really becomes this after you deplete his HP for the first time and trigger his enraged second form, which gives him +100% ATK and +100 ASPD while making him move 2.5x faster. At that point, you'll need a dedicated tank with well upwards of 1000 DEF and strong Medic support to withstand his assault for more than a few seconds.
* UnskilledButStrong: Out of the three final bosses fought in the mode, he lacks any major gimmicks or skills, but makes up for it by being the strongest in terms of sheer stats and power.

[[folder:"The Ruinbringer"]]
One of the three possible final bosses of ''Fire Within the Sand'', an elite Caster honored by the local Lord Ameer.

* TheArchmage: As even the local Lord Ameer honors him and his skill, he's by default this. His army also has various casters in its ranks, including the dreaded Dublinn Evocators.
* AxCrazy: He lusts for wanton destruction, and sees destroying the enemies of his lord as a mere bonus.
* EnemySummoner: His primary gimmick is summoning Infused Originium Slugs, while having negative Taunt. He's surprisingly weak in direct combat, with his only advantages being his [[DamageSpongeBoss monumental HP]] and high RES.
* ThisLooksLikeAJobForAquaman: His MookMaker gimmick actually falls straight into [[Characters/ArknightsDefendersNToZ Penance's]] portfolio, as his summoned Infused Originium Slugs will refresh Penance's barrier faster than they can deplete it.
* TurnsRed: Once he enters his second phase, he'll start spawning red Infused Originium Slugs along with the originals.

[[folder:"Al-Rafiq"]]
One of the three possible final bosses of ''Fire Within the Sand'', elite armored corps of a Lord Ameer operating their self-assembled armor.

* AttackReflector: While the pilot is exposed, Operators attacking him will take half his ATK as physical damage.
* MiniMecha: The boss you fight is a small mech piloted by a Sargonian engineer.
* ResurrectiveImmortality: If you destroy the mech but fail to kill the pilot that falls out in the allocated time, the mech is revived with full HP. If you lack the DPS to do so, the fight may become outright unwinnable.
* TakingYouWithMe: The mech explodes when it dies to inflict damage and a lengthy stun in a wide area, potentially letting enemies through or delaying the retaliation against the now-exposed pilot.
* ThreeHitCombo: After 3 attacks, its 4th attack will deal significant bonus damage in a [=AoE=].
* ZergRush: It comes in with ''over 250'' enemy units as support, surpassing the raids of even the other final bosses, many of which are tanky heavy hitters like Mudrock Zealots, Originiutants, and Vein Guardians.

[[folder:The Great Wingbeast]]
A massive infected predator native to Sargon.

* BreathWeapon: Its fireball breath, which deals massive Arts and Burn damage, but is only used while airborne.
* GiantFlyer: A massive creature capable of flight despite its Originium-crusted wings, although the latter do weigh it down to the point that it can't fly for very long.
* NonMaliciousMonster: It's mentioned to be a ferocious predator normally, but the one you encounter in-game is satiated and not interested in a fight, hence why it's passive until you attack it.
* OptionalBoss: An optional and fairly tough encounter, but will drop 6-10 Marrow Fungi when killed, which are the highest quality cooking ingredient in a quantity that can't be matched by any other source.
* PinataEnemy: Although it's not exactly ''easy'', it's generally easier to kill than The Immortal, and drops top-tier cooking ingredients that will be a huge boon in winning an Algorithm.

[[folder:"The Immortal"]]
One of the legendary Zhayedans that served Sargon in its infamous Eternal Army. Its presence in the desert and aimless wandering is a mystery, as it does not respond to anything besides to attack threats.

* MightyGlacier: He has ''600,000'' health and a whopping '''4500 ATK''', along with 1000 DEF and the ability to restore 12000 HP each time something dies around him, although he is very weak to Arts. His incredibly slow attack speed is offset by the fact that outside of damage negation or immortality, damn near nothing can survive a blow from him, making him near impossible to tank straight up and encouraging methods of kiting him around instead.
* OptionalBoss: You can find him wandering around in a special No Man's Land node, where he's optional to take down and will generally take quite some effort to do so if you choose to fight. If you kill him, he'll reward you with a truckload of gold and building materials, letting you quickly fortify your base infrastructure.
* OurZombiesAreDifferent: It's unknown exactly how a Zhayedan is created, but it's implied to involve some form of resurrective Arts to turn the original corpse into a towering superhuman.
* SandBlaster: If his target is on high ground, he'll use a sand blast instead of his axe. The blast deals reduced damage, but "reduced" still being 1800 ATK means that squishier ranged units will probably be one shotted anyways.
* SuperSoldier: The Zhayedans represent the peak of Sargon's military power, and are specifically used in the far south to prevent the Collapsals from encroaching on Sargon, similar to Ursus' Emperor's Blades.
* YourSoulIsMine: Any Operator that dies or is retreated within a certain radius will heal him.

[[folder:"Anything Can Be Broken"]]
->'''Other variations:''' "Everything Should Be Smashed"
An enemy mobile catapult that prioritizes base constructs and deals significantly increased damage to them.

* AbnormalAmmo: They throw fruits with extremely hard shells rather than rocks.
* ArchaicWeaponForAnAdvancedAge: Arknights world is rather advanced, at least comparable and at worst slightly behind earth tech level. But these are virtually medieval era catapults that throw ''fruit''.
* SiegeEngines: They prioritize attacking base constructs, and deal bonus damage against structures.

[[folder:Sandfall Crystalhoof]]
An extremely rare Sargonian beast sought after for its glittering coat, and a highly valuable food ingredient.

* GetBackHereBoss: It doesn't fight back, and its first reaction upon being hit is to run away. If you don't finish it off in one day, it will move to a different part of the world map altogether. Bring your Fast-Redeploy Operators to chase it around, and hope you can kill it in a single attempt.
* KingMook: To the common Leporibeasts and Leporibeast Longhorns, although it's unclear if they're actually related.
* PinataEnemy: Killing it grants you 3 Marrow Fungi, and as it doesn't fight back, the only challenge is chasing it around the map.
* TooDumbToLive: At times, it would run straight into a BottomlessPit if the map has one, instantly killing it.

[[folder:Sargonian Contract Assassin]]
A Sargonian assassin renowned for their agility, and one of the potential 5 enemies in the ''Sickness of the Land'' BossRush stage.

* FlashStep: Shares Crownslayer's dash ability, letting them bypass blockers.
* MiniBoss: Though they are listed as merely an Elite, they are faced in a BossRush stage along with other boss-tier opponents such as Dorothy, Mudrock, The Rat King, or The Lost Colossus.
* {{Ninja}}: They may not look quite like one (though pretty close), but they definitely act like one. With their ability to bypass blockers like Crownslayer, their primary tactic is to stay invisible at range and pepper your Operators with knives.

[[folder:Vein Guardian]]
->'''Other variations:''' Crazed Vein Guardian
Originium constructs of unknown origin which fiercely protect Ibut's mineral deposits.

* AttackReflector: Attacking it hits the offender with a backlash of 200 Arts damage, which can spell doom for Operators with rapid/multi-hit attacks and no way to heal off the damage in time.
* StoneWall: It has a beefy 25,000 HP (''40,000'' for the Maddened variant), but have little in the way of ATK, DEF, and RES. Its danger comes from its backlash Arts damage.

! Kazimierz Units
!!! Competitive knights (Introduced in ''Maria Nearl'')
[[folder:Nameless Independent Knight]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_avg_npc_217_6.png]]
->'''Other variations:''' Nameless Elite Knight

Low-ranking knights of the Kazimierz Major.
----
* PaletteSwap: Of the basic Reunion Soldier, packing similarly pathetic stats.

[[folder:Training Pincerbeast]]
->'''Other variations:''' Vicious Training Pincerbeast

Infected wild creatures used to train the fighters of the Kazimierz arena. While they're rather weak, they have surprisingly high defenses for a fodder unit.

[[folder:Roar Knightclub Trainee]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_avg_npc_216_9.png]]
->'''Other variations:''' Roar Knightclub Elite, "Plastic" Szewczyk

Kazimierzian knights who wield crossbows and wear experimental armor. Their prototype armor grants them a gigantic amount of DEF and RES when they first spawn, but this will expire quickly.

* KingMook: "Plastic" Szewczyk is both a relevant character in the plot and considerably stronger than even the Roar Knightclub Elites.
* StoneWall: While their shield is up, they get an utterly ridiculous '''3000 Defense and 95% Arts Resistance''', which is '''more''' than [[DamageSpongeBoss the already-infamous Patriot.]] After their shield expires, they're complete pushovers.

[[folder:Independent Knight Shielder]]
->'''Other variations:''' Elite Knight Shielder

Knights who focus on defensive equipment, packing high durability but a weakness to Arts.

* PaletteSwap: Of Reunion Heavy Defenders, packing almost identical stats.
* HeavilyArmoredMook: Much like their Heavy Defender cousins.

[[folder:Bloodboil Knightclub Trainee]]
->'''Other variations:''' Bloodboil Knightclub Elite, "Brassrust" Olmer Ingra

Brutish knights of Kazimierz who gain stacking damage and attack speed buffs with each of their allies that die on the field while they're active, up to a cap.

* KingMook: "Brassrust" Olmer Ingra is both a relevant character in the plot and considerably stronger than even the Bloodboil Knightclub Elites.
* TurnsRed: For every enemy unit you kill while they're alive, they'll get +10% ATK and +5 ASPD. This stacks up to ten times, meaning killing lots of enemies before them can result in these enemies becoming a much bigger threat.

[[folder:Bladehelm Knightclub Trainee]]
->'''Other variations:''' Bladehelm Knightclub Elite, "Left-Hand" Tytus Topola

Knights who have high stats and wield ranged Arts. They can periodically halve the attack of the Operator with the highest ATK on the field, and will fully revive themselves when defeated for the first time.

* BackFromTheDead: Will revive themselves once they're killed for the first time, being the first non-boss enemy to possess such an ability.
* KingMook: "Left-Hand" Tytus Topola is both a relevant character in the plot and considerably stronger than even the Bladehelm Knightclub Elites.

[[folder:Sponsor Drone]]
->'''Other variations:''' Luxury Sponsor Drone, Cheering Sponsor Drone

Corporate advertisement drones that appear during matches in the Kazimierz Major. While they're harmless optional to kill, defeating them grants the player anything from resources to a temporary power boost.

* NonActionGuy: They are not designed to deal any damage to opposing operators, and don't deduct any lives if they get away.
* SupportPartyMember: Surprisingly enough, they are the only enemy unit to be this ''towards the player'', by providing various boons to the player when defeated, from buffing the ASPD of all active operators to providing deployable objects for the player to use.

!!!Armorless Union and Competitive knights (introduced in ''Near Light'')

[[folder:Undertide Gloompincer]]
->'''Other variations:''' Undertide Gloompincer α

Gloompincers that escaped the arenas and live in the city sewers. Their affinity for dark spaces gives them increased speed when in areas with no visibility.

[[folder:Nova Knightclub Trainee]]
->'''Other variations:''' Nova Knightclub Elite, The Candle Knight Viviana

Trainees of the Nova Knightclub led by the Candle Knight, who imitate her signature Arts. Can periodically charge up Glimmering Touch, which deals massive area damage at the cost of them becoming fully visible while charging.

* KingMook: Like the other Knightclub Trainee types of enemies and their respective named [=NPCs=], The Candle Knight Viviana is this, although at her base level she's only different from the Nova Knightclub Elites in that her version of Glimmering Touch is more powerful.
* LightEmUp: Their Glimmering Touch attack, hitting anyone in the target area with large Arts damage in a luminescent burst.

[[folder:Knight Territory Wanderer]]
->'''Other variations:''' Knight Territory Hibernator

Competition knights who lack a Knightclub and are periodically found in a drunken daze in the backstreets. They spawn in dark regions and remain passive until they are lit up or enough time passes, upon which they will violently retaliate.

[[folder:Nightzmora Imitator]]
->'''Other variations:''' Nightzmora Follower, "The Last Kheshig", Tola

Fans of the Nightmare Knight who began imitating his appearance and signature Arts abilities out of fascination. They're powerful melee warriors who can periodically cast Coalescing Fear, which targets all Operators who lack vision immediately behind them for heavy physical damage.

[[folder:Armorless Union Assassin]]
->'''Other variations:''' Armorless Union Assassin Leader

Assassins of the Armorless Union who specialize in sneak attacks. Their ATK gradually increases the longer they spend in regions with no visibility, but will reset after they attack once.

[[folder:Armorless Union Crossbowman]]
->'''Other variations:''' Armorless Union Crossbowman Leader

A crossbow user hired by the Armorless Union who is adept at attacking from shadows. Their attacks deal Arts damage if they're in regions with no visibility.

[[folder:Armorless Union Cleanup Squad / Third Squad]]
->'''Other variations:''' Armorless Union Cleanup/Third Squad Leader, Lazurite Roy, Lazurite Monique

Elite archers of the Armorless Union under the direct command of the Lazurites Roy and Monique respectively. Their deadly attacks can strike from nearly anywhere on the map, inflicting significant Corrosion damage and dealing bonus damage on every fourth shot. The Cleanup Squad members deal higher damage, but the Third Squad members attack faster.

! Ursus Units

!!! Ursus' army (Introduced in Chapter 8)

[[folder:Ursus Civilian]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_081.png]]

Harmless civilians that will attempt to flee to blue boxes for safety. Players must protect them, as letting a Civilian die will be counted as a life loss.

* AssholeVictim: Hard to shed a tear for them when they get massacred in [=JT8-1=], considering what they did with the infected ones and [[ArsonMurderAndJaywalking being as unhelpful as possible in battle]].
* EscortMission: Their very presence creates one. Letting them die is equivalent to leaking an enemy, and considering that they're [[TooDumbToLive pretty suicidal]] in [[ThatOneLevel some levels]]...
* ManOnFire: In [=JT8-1=], the first victim of Talulah's rampage is [[CruelAndUnusualDeath slowly burned alive.]] The rest of the Civilians at least get a quicker death.

[[folder:Ursus Mangler]]
->'''Other variations:''' Ursus Mangler Packmother

A ruthless pack beast trained by the Ursus military.

[[folder:Infected Patrol Captain]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_npc_082.png]]
->'''Other variations:''' Elite Infected Patrol Captain

Vanguards from the Ursus Army in charge of hunting down infected civilians.

* ZeroPercentApprovalRating: Forget their enemies, the description of the Elite Patrol Captain says that they're generally despised by the soldiers and city officials of Ursus alike, despite their shared anti-Infected stance.
* LongRangeFighter: They can target the Ursus Civilians and Talulah the Fighter with a ranged attack.
* NonIndicativeName: Despite the "captain" in their name, they are the most commonly encountered enemies in Chapter 8, making them more akin to specialized regular soldiers than those holding high ranking positions within the army.
* SociopathicSoldier: Described as greedy and cold-blooded, the patrols don't give a crap about human life, as they constantly persecute and murder innocent infected villagers. [[GameplayAndStoryIntegration This is even a part of gameplay]], as all of the Ursus troops in Chapter 8 ''actively prioritize attacking civilians over Operators.''
* WouldHarmASenior: [[spoiler:They have no qualms about offing old people, as Ivan would find out later.]]

[[folder:Guerrilla Herald]]
->'''Other variations:''' Guerrilla Herald Leader

Special forces deployed by Patriot. While their combat ability is poor, they will passively provide a stacking ATK/DEF buff to all foes on the map while activating the special abilities of most Guerrilla units.

* PaletteSwap: Of the Reunion Technical Scout. They sport the same general moveset and aura-based abilities, but whereas Tech Scouts offer the enemy team TrueSight, Heralds provide a StatusBuff to every non-Herald unit on the map instead.
* SupportPartyMember: While they can't fight very well, their global buffing abilities make them a priority target to take out whenever they appear.
* StatusBuff: Grants all enemies +10% ATK and +100 DEF as long as they're alive, which stacks additively if more than one is alive. They'll also activate the special abilities of most Guerrilla troops.

[[folder:Ursus Raider]]
->'''Other variations:''' Ursus Raider Leader

Imperial soldiers trained to break enemy lines. They prioritize attacking civilians and can only be blocked by Operators with 2 block or higher.

* ThrowingYourSwordAlwaysWorks: Throwing your spear always works... especially against Ursus Civilians.

[[folder:Imperial Striker]]
->'''Other variations:''' Elite Imperial Striker

Heavy soldiers in the Ursus army who can attack with javelins at range and stronger spear strikes at melee range. Their attack power will double once they drop below half health.

* MightyGlacier: Their movement speed isn't that fast, but they make up with high mixed bulk and strong attacks.
* TurnsRed: Their attack doubles when below 50% HP. Considering that they hit hard to begin with, this is usually bad news if you can't kill them quickly after this point.

[[folder:Imperial Artillery Targeteer]]
->'''Other variations:''' Imperial Artillery Core Targeteer

Heavily armored drones who don't attack manually but mark targets for Ursus artillery bombardment, calling in explosive airstrikes that deal severe area damage to their targets.

* DeathFromAbove: Calls in artillery strikes from above to do massive splash damage.
* MightyGlacier: They deal massive damage, have sturdy defenses, and pack massive amounts of HP, but they're extremely slow to compensate.

! Columbian Units
!!! Inmates (Introduced in ''Mansfield Break'')
[[folder:Ordinary Prisoner]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_avg_npc_132.png]]
->'''Other variations:''' Seasoned Prisoner

A common prisoner held in Mansfield Prison. The imprisonment collars worn by them and all their Mansfield cohorts initially cripple their attack speed, but will be disabled after they attack four times, nullifying the penalty and granting them a substantial ATK boost instead.

[[folder:Sniper Prisoner]]
->'''Other variations:''' Elite Sniper Prisoner

Mansfield inmates who wield haphazard bows to attack from range and prioritize destroying Imprisonment Devices. When their collars are disabled, their attacks additionally start to deal Arts damage.

[[folder:Pugilist Prisoner]]
->'''Other variations:''' Elite Pugilist Prisoner

A Mansfield inmate who excels in fistfights. When their collars are disabled, they will additionally gain the ability to ignore a large portion of the target's DEF with their attacks.

[[folder:Strongman Prisoner]]
->'''Other variations:''' Herculean Prisoner

A towering Mansfield inmate who uses improvised weapons taken from a storage room. When their collars are disabled, they will additionally gain RES and start regenerating health.

[[folder:Caster Prisoner]]
->'''Other variations:''' Deadly Caster Prisoner

A frail inmate that passively buffs the ASPD of all active enemies and gains increased DEF when imprisoned. While they uniquely cannot free themselves from their collars, if they are somehow freed, they'll start using long-ranged Arts attacks on two targets at once, prioritizing Imprisonment Devices.

[[folder:Hardened Criminal]]
->'''Other variations:''' Infamous Recidivist

A terrifying Mansfield inmate with an imposing criminal record and the constitution to match. When imprisoned, they gain additional DEF, but they will also free every imprisoned enemy on the map should they free themselves by attacking.

!!! Rhine Lab staff and experiments (Introduced in ''Dorothy's Vision'')

[[folder:Rhine Defense Member]]
->'''Other variations:''' Rhine Defense Senior Member

Members of Rhine Lab's Defense Section, charged with escort duty. Blocks the first instance of Physical or Arts damage they receive.

* BarrierWarrior: Technological version; they possess protective barriers around them that protect them from Physical or Arts damage, but they can only deflect it once before their shield breaks.

[[folder:Rhine Engineering Member]]
->'''Other variations:''' Rhine Engineering Senior Member

Members of Rhine Lab's Engineering Section, charged with equipment maintenance. Restores HP to inactive Power Armors.

* CombatMedic: They have a ranged Arts attack in addition to being able to repair inactive Power Armors.

[[folder:Dor-1 Failure]]
->'''Other variations:''' Dor-α Failure

Arrowhead-shaped objects made out of 'Transmitter' reagent as a product of Dorothy's failed experiments. Absorbed by Power Armors to gain SP.

* GreyGoo: They are blob-like beings of a material used in Dorothy's research.
* PuppeteerParasite: Sort of. The 'Transmitter' reagent used to create them is a material researched for the potential of replacing a Power Armor pilot, which is shown ingame as them activating idle Power Armors when absorbed.

[[folder:Dor-2 Replica]]
->'''Other variations:''' Dor-β Replica

Blobs of 'Transmitter' reagent made from Dorothy's repeated experiments. Absorbed by Power Armors to gain SP.

[[folder:Dor-3 Bionic]]
->'''Other variations:''' Dor-γ Bionic

Blobs made out of 'Transmitter' reagent as a product of Dorothy's private experiments. Takes less damage when not blocked and absorbed by Power Armors to gain SP.

[[folder:Experimental Power Armor]]
->'''Other variations:''' Test Power Armor

A set of power armor designed to function without a pilot.

* AchillesHeel: As a Machina, they boast impressive DEF but low RES, making them vulnerable to Arts damage.
* LightningBruiser: It moves slightly faster than the other Power Armors, and, to compensate for its lack of weaponry, possess a relatively fast attack speed.
* MechaMooks: They are completely autonomous.

[[folder:R-31 Heavy Power Armor]]
->'''Other variations:''' R-31a Heavy Power Armor

A set of empty power armor armed with power fists capable of stunning enemies. Can be found sitting inactive in levels, but will become active when they gain enough SP from absorbing Dor enemies.

* GiantMook: It is much taller and larger than the Experimental Power Armor.
* GroundPound: They will punch the ground that leaves Operators stunned.
* MightyGlacier: It is slow as molasses, but hits like a truck, possess even higher HP than the Experimental version, and is capable of stunning unfortunate Operators they can get their hands on.

[[folder:R-11 Assault Power Armor]]
->'''Other variations:''' R-11a Assault Power Armor

A set of empty power armor equipped with rocket launchers, capable of attacking multiple enemies at once. Can be found sitting inactive in levels, but will become active when they gain enough SP from absorbing Dor enemies.

* GiantMook: It is much taller and larger than the Experimental Power Armor.
* MacrossMissileMassacre: They are armed with a missile launcher, and can target up to four Operators present.
* MightyGlacier: Just as slow (and tough) as their R-31 counterparts, but it boasts some firepower in exchange.

! Great Yan Units
!!! Ink Spirits (Introduced in ''Who is Real'')

[[folder:"Angry"]]
->'''Other variations:''' Anxious "Angry"

A fast-moving, ill-tempered Ink Spirit. Like all of their Ink Spirit brethren, they can exploit the Hui/Ming mechanic found in their event, dealing and taking bonus damage from Operators with the opposite attribute, and decreased damage from those with the same attribute.

[[folder:"Bitey"]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_avg_npc_143_1.png]]
->'''Other variations:''' Serious "Bitey"

A basic Ink Spirit with a curious, sociable personality.

[[folder:"Stabby"]]
->'''Other variations:''' Flanking "Stabby"

A prideful Ink Spirit whose ranged attacks prioritize attacking Operators with the opposite attribute as itself.

[[folder:"Lazy"]]
->'''Other variations:''' Unmoving "Lazy"

A massive, sedentary Ink Spirit with equally massive bulk and the ability to draw Operator fire to itself.

[[folder:"Smarty"]]
->'''Other variations:''' Dazzled "Smarty"

A lively Ink Spirit with low stats, but the ability to explode into a powerful Arts explosion on death. If two Smarties with opposing attributes come into close proximity, they'll instantly detonate in an unfathomably powerful blast.

* ActionBomb: It will explode upon getting killed, dealing quadruple their ATK Arts damage in the surrounding tiles. If two opposing Smarties meet, the resulting explosion will deal anywhere between ''1350% to 1650%'' of their ATK as Arts damage, which will almost certainly one-shot whatever is in range.
* HoistByTheirOwnPetard: They can get themselves killed by their own carelessness if two "Smarties" with different Hui/Ming attributes get close to each other. Sadly, it ''[[OneHitKill won't be pretty]]'' if your operators get caught in the ensuing blast.

[[folder:"Blindey"]]
->'''Other variations:''' Indefatigable "Blindey"

A reckless Ink Spirit with above-average stats and the ability to pass through any Operator without the same attribute as itself.

[[folder:"Envy"]]
->'''Other variations:''' Complicated "Envy"

A frightening, neurotic Ink Spirit with powerful Arts attacks. They'll periodically charge up special attacks that deal heavy Arts damage and forcibly change the attribute of their target.

[[folder:"Fury"]]
->'''Other variations:''' Unbridled "Fury"

A hulking but dimwitted brute of an Ink Spirit that deals massive damage against Operators with the opposite attribute as itself.

* DumbMuscle: Extremely powerful, but too stupid to make good decisions in combat.

[[folder:"Free"]]

The main boss of "Who is Real". It is the strongest familiar of Dusk, an enormous unforgiving Ink Spirit with a cold, arrogant, and domineering presence.

* BarrierChangeBoss: Switches its attribute from Ming (white) to Hui (black) when it TurnsRed, changing its strength and weakness to match.
* DeflectorShields: Its Break the Chains attack has him stop and protect himself with a barrier that absorbs a certain amount of damage. If you don't destroy the shield fast enough, it'll [[ActionBomb explode]] with enough damage to OneHitKill virtually anything caught in the blast. Not breaking the shield at all during its second battle is actually required for one of the event medals.
* LargeAndInCharge: The biggest of the Ink Spirits, and by far the most powerful.
* LaterInstallmentWeirdness: Free is the only "Public Affairs" event boss who is not represented with a cutscene sprite, nor with a CG image. Just like the Sarkaz Centurion, it's treated as just another foe more than a proper character, although it's far stronger.
* TurnsRed: When it's first defeated, it'll fully restore his HP and empower all of its attacks, in addition to using its Weft and Warp ability and basic attack on two targets simultaneously.

!!! Waregeists (Introduced in ''Invitation to Wine'')

[[folder:General Waregeist tropes]]
* AnimateInanimateObject: Waregeists are essentially collections of mundane objects (such as paperweights, picture frames, vases etc.) whose spirits have been awakened and driven to aggression [[spoiler:by the spirit fragment of the Second Brother contained within the black goblet]].
* AsteroidsMonster: When defeated, each Waregeist spawns a number of Enchanted Objects that don't attack, can't be blocked, and require a certain number of hits to defeat, regardless of how powerful those individual hits are. This encourages strategies based around operators with high attack speed, attacks that hit multiple times at once, and damage-over-time effects[[note]]since each time the effect triggers is considered a separate "hit"[[/note]].
* ItsProbablyNothing: In the early story segments of "Invitation to Wine," a number of characters spot Waregeists sneaking around before they begin to appear in significant numbers, but each time they dismiss it as a trick of the light, a fatigue-induced hallucination, or some manner of mundane animal. It's only when the things start to swarm that people really notice what they actually are.
* ZergRush: In-story, individual Waregeists aren't particularly powerful, but they appear in great numbers and don't stop coming. In-game, their nature as {{Asteroids Monster}}s means that if you're not careful, your defensive lines will get overrun by massive numbers of unblockable enemies that you can't kill fast enough to win.

[[folder:Grindstone]]
->'''Other variations:''' Brightmirror

A canine-like Waregeist made from wooden seals. Spawns 2 wooden seals when defeated.

[[folder:Vernacularism]]
->'''Other variations:''' Sophistication

A soldier Waregeist made from novel scrolls. Spawns 3 novel scrolls when defeated.

[[folder:Introspection]]
->'''Other variations:''' Scantwords

A Waregeist created from a mirror that resembles a bird. Taunts operators into attacking it, and spawns a mirror when defeated.

* IShallTauntYou: It taunts operators into attacking it over other enemies by "revealing their inner secrets in their truest form".

[[folder:Inkwave]]
->'''Other variations:''' Heartbillow

A stone lion-shaped Waregeist created from a fusion of multiple paperweights. Spawns 15 wooden paperweights when defeated.

* MightyGlacier: Not particularly fast moving, but they have good HP and DEF as well as high attack damage.
* ZergRush: Is the epitome of this among Waregeists as they spawn '''15''' paperweights on defeat that requires 2 hits each to kill, making [=AoE=] attacks more or less required to fully clean them up.

[[folder:Fountainboil]]
->'''Other variations:''' Rainbowbrew

A Waregeist made from a tea set resembling a hermit crab with a teapot as its shell. Deals splash Arts damage on attack and explodes upon death to debuff nearby operators with slowed attack speed. Spawns 4 celadon teawares when defeated.

* AchillesHeel: Similar to Infused Originium Slugs, Silence status effect prevents it from exploding on death.

[[folder:Blueflower]]
->'''Other variations:''' Scarletmist

A Waregeist created from a vase that appears as a dragon riding on the vase. Can inflict a debuff that causes operators to take increased Arts damage over time. Spawns a celadon vase when defeated.

* AchillesHeel: Silence status effects prevents the Blueflower from using its debuffing attack as well as freezing the attack count, removing its main source of danger.
* DamageOverTime: After a few attacks, the Blueflower can launch a stronger attack (shown by the attack coming out of the vase instead of the dragon) that inflicts increasing Arts damage over time on the victim.

[[folder:Sinkingsand]]
->'''Other variations:''' Sharpedge

A Waregeist resembling a warrior made from bronze spearheads. Has four "Broken Blades" on spawn, which buffs its attack by 70% and consumes one "Broken Blade" per attack. Spawns spearheads based on the amount of remaining Broken Blades it has at the time of defeat.

[[folder:Clarity]]
->'''Other variations:''' Magnificence

A Waregeist made from a lampstand that resembles a bird statue. Periodically grants nearby enemies invisibility. Spawns a bronze lampstand on defeat.

* TheSneakyGuy: Not itself, but Clarity can produce a smokescreen that grants invisibility to nearby Waregeists.

[[folder:Wisp]]

Fragments of Sui's main body. Increases Sui-Xiang's max HP and reduces the charging time of its special ability when absorbed.

!!! Shanhaizhong (introduced in ''Where Vernal Winds Will Never Blow'')

[[folder:Di Beast]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongdibeast_sprite.png]]
->'''Other variations:''' Raging Di Beast

Beasts created by Ya that serve as Its eyes and ears.
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[[folder:Shanhaizhong Skirmisher]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongskirmisher.png]]
->'''Other variations:''' Shanhaizhong Vigilante

Ordinary members of Shanhaizhong with a complex past. Gain increased range when standing on Yumen Catastrophe Defenses.

[[folder:Shanhaizhong Relayer]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongrelayertalksprite.png]]
->'''Other variations:''' Shanhaizhong Harbringer

Tacticians specialized in relaying orders via ciphers. Deploy a Shanhaizhong Cipher on the first unoccupied Yumen Catastrophe Defense tile that they pass through.

* DroneDeployer: They put down stationary ciphers that give a movement speed and ASPD buff to all enemy units on the field, making it imperative to either stop them from reaching Yumen Catastrophe Defense tiles or destroy the deployed ciphers.
* MalevolentMaskedMen: Wear golden full-face masks that resemble animal skulls.

[[folder:Shanhaizhong Desperado]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongdesperado.png]]
->'''Other variations:''' Shanhaizhong Phalanx

Large, burly Shanhaizhong members tasked with defense.

[[folder:Shanhaizhong Ringleader]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongringleaderelitetalk.png]]
->'''Other variations:''' Shanhaizhong Secret-Keeper

Leaders of the Shanhaizhong disguised as normal members. Is invisible until their first attack, and the strike that breaks invisibility deals double damage to the target.

[[folder:Shanhaizhong Seer]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongseer.png]]
->'''Other variations:''' Shanhaizhong Oracle

Casters trained by the Feranmuts in Originium Arts. They can lock onto a target and channel to create a large burst of Arts damage, which also buffs their ASPD afterwards.

* ChargedAttack: Their main gimmick.
* MalevolentMaskedMen: Wear golden masks over their upper faces, resembling animal skulls.

[[folder:'Wallbreaker']]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizongwallbreaker.png]]
->'''Other variations:''' 'Fortbreaker'

Yumen siege machines stolen by the Shanhaizhong. Prioritize attacking roadblocks and operators located on Yumen Catastrophe Defenses.

[[folder:'Sandwalker']]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shanhaizhongsandwalker.png]]
->'''Other variations:''' 'Sand Voyager'

Yumen desert transportation stolen by the Shanhaizhong. Can only be blocked by operators with 4 block, picks up non-Leader and non-Machine enemies up to 3 max, and will unload its cargo when reaching a Ladder.

! Rhodes Island Units
!!! Unmanned RI machinery (introduced in ''Multivariate Cooperation'')

[[folder:Retrofitted Gas Truck]]
->'''Other variations:''' High-Powered Gas Truck
A mobile pesticide sprayer repurposed as a weapon, but gone haywire due to a design flaw. Constantly disperses noxious gas when not blocked, dealing constant Arts damage to all friendly units on the map.

[[folder:Second-hand Low-cost Drone]]
->'''Other variations:''' Modified Second-hand Drone
A repurposed Kazimierz arena drone that doesn't deduct lives when escaping, but drops items when destroyed.

[[folder:Mobile Generator]]
An experimental mobile energy vehicle that won't deduct lives upon escaping, but grants all allies SP on destruction.

! Iberian Units
!!! Seaborn (Introduced in ''Under Tides'', ''Stultifera Navis'' and ''Mizuki & Caerula Arbor'')

[[folder:Shell Sea Runner]]

->'''Other variations:''' Nourished Runner
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_shellsearunner.png]]

A Sea Terror that grew four limbs, but lacks an internal skeleton.

* ZergRush: The Seaborn equivalent of Hounds, as [[FragileSpeedster weak but fast-moving creatures]] meant to overwhelm your lineup through sheer numbers.

[[folder:Deep Sea Slider]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/avg_avg_npc_185.png]]
->'''Other variations:''' Nourished Slider

A Seaborn that evolved the ability to walk on land. Deals bonus Nervous Impairment on attack, which will deal massive damage and stun Operators that take too much Sanity damage.

[[folder:Ridge Sea Spitter]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_ridgeseaspitter.png]]
->'''Other variations:''' Nourished Spitter

A Seaborn that threatens with high-velocity ranged spit that can crush coral reefs.

[[folder:Floating Sea Drifter]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_floatingseadrifter.png]]
->'''Other variations:''' Nourished Drifter

A Seaborn that evolved the ability to fly. Uses ranged attacks that inflict bonus Nervous Impairment.

[[folder:Basin Sea Reaper]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_basinseareaper.png]]
->'''Other variations:''' Nourished Reaper

A Seaborn who normally stays passive while absorbing nutrients. When attacked, they'll rush down targets with attacks that deal bonus Nervous Impairment damage, while also burning their health away to rapidly inflct Nervous Impairment to all friendlies nearby.

* LivingOnBorrowedTime: Reapers lose HP over time after switching to Combat-Ready mode. A possible strategy is to stall them (with crowd control or Executor Specialists) to let them burn themselves out before they can reach your defense line.

[[folder:Pocket Sea Crawler]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_pocketseacrawler.png]]
->'''Other variations:''' Nourished Crawler

An extraordinarily tough Seaborn with a minerally dense body. Doesn't attack normally, but deals bursts of Arts and Nervous Impairment damage whenever damaged enough.

* HerdHittingAttack: Whenever a Crawler loses 15% of its HP, it will unleash a burst of Arts and Nervous Impairment damage in the 2-tile area surrounding it. Given that Crawlers come with no DEF or RES whatsoever, depleting its health quickly is very easy - and also very deadly, as the overlapping bursts of Arts and Nervous Impairment damage can quickly overwhelm Medics and destroy the player's defense line.

[[folder:Primal Sea Piercer]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_primalseapiercer.png]]
->'''Other variations:''' Nourished Piercer

A powerful Seaborn that evolved a natural harpoon, they use said weapon to prioritize the most injured friendly units from range.

* FinishHim: Piercers prioritize attacking operators with the lowest HP percentage.

[[folder:Automatic Maintenance Drone]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_automaticmaintenancedrone.png]]

An friendly Iberian machine that improves the performance of nearby Emergency Aid Buildings.

* FriendlyFireproof: Subverted; even though they are beneficial to the player, will not hurt your operators, and do not deduct lives if they enter the blue box, this does not prevent them from being inadvertently attacked and killed by your operators. Granted, you sometimes need to do this in some operations to prevent them from activating any Emergency Aid Buildings, which is required for certain Medals in ''Under Tides''.
* SupportPartyMember: Much like the Sponsor Drones before them, they are this towards the player, empowering the Emergency Aid Buildings with a more potent Nervous Impairment healing when adjacent to one.
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[[folder:Nethersea Spewer]]
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/arknights_netherseaspewer.png]]
->'''Other variations:''' Nourished Spewer, Regressed Spewer

A snail-like Seaborn that spits spores to attack multiple enemies. They can attack any operator standing on Nethersea Brand, no matter the distance.

* HerdHittingAttack: Nethersea Spewers can attack up to 3 targets at once, as well as all operators that are standing on the Nethersea Brand.
* MightyGlacier: Spewers are the slowest Seaborn enemy in the game, but their damage more than makes up for it.
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[[folder:Nethersea Predator]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_netherseapredator.png]]
->'''Other variations:''' Nourished Predator, Regressed Predator

A Seaborn with a chitinous bird-like skull. Adept at bypassing defenses and dodging attacks.

* AchillesHeel: Their evasion is disabled if they are afflicted by negative status effects (Stun, Silence, Cold/Freeze, Bind, Levitate), rendering them far easier to kill.
* FragileSpeedster: Predators have paper-thin defenses - low HP, flimsy DEF, and no RES. In return, their evasion, high movement speed, and ability to be unblockable when on Nethersea Brand allows them to slip past defense lines with ease.
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[[folder:Nethersea Founder]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_netherseafounder.png]]
->'''Other variations:''' Nourished Founder, Regressed Founder

A Seaborn with a chitinous bird-like skull, capable of creating the Nethersea Brand.

* AchillesHeel: The Silence status effect. A Silenced Founder loses its ability to spawn Nethersea Brand when it dies.
* AntiMagic: Founders boast an impressive 90 RES, making Arts damage ineffective.
* LastDitchMove: Founders infest the tile they are on with spreading Nethersea Brand when they die, making them a common source of Nethersea Brand in operations without an infested starting tile.
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[[folder:Nethersea Brandguider]]
[[quoteright:150:https://static.tvtropes.org/pmwiki/pub/images/arknights_netherseabrandguider.png]]
->'''Other variations:''' Nourished Brandguider, Regressed Brandguider

A Seaborn created from a dying colony with the goal of expanding the Nethersea Brand.

* AchillesHeel: The Silence status effect, similar to Nethersea Founders, as a Silenced Brandguider cannot create Nethersea Brand. Silence does not remove the Brandguider's increased DEF, however.
* LoopholeAbuse: One-shotting the Brandguider from full health (i.e. Ebenholz) will also prevent the Brandguider from creating Nethersea Brand tiles.
* TurnsRed: When a Brandguider's health falls below half, its DEF is ''quadrupled'' and its block requirement is increased from 1 to 2, making it both significantly harder to kill and more likely to cause leaks.
* WalkingWasteland: Brandguiders below half health infest the tiles they walk on with Nethersea Brand.
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