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As expected of a gacha game, there are several, but if you think you'll have easy access to them, you'll have to roll the gacha for them first and cross your fingers for the best.

Individual Servants

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  • Jeanne d'Arc (Alter). With her Avenger class with a natural 1.1 damage modifier that is currently resisted by only Moon Cancer class, consisting of three Servants (BB, Summer BB, and Ganesha), two of whom are event-locked at that. Jalter has the highest attack stats in the game, and being an Avenger, Jalter had several passives that improves her defensive NP generation with a passive that regenerates them to boot. Skillset wise, Jalter is basically the textbook ideal offensive servant, having a Charisma to boost her generic damage output, Self-Modification a skill that both enables, and improves critical damage, and a Mana Burst that doubles as a defensive skill, offering invulnerability for the turn it is used. Her cards have good hitcount, and solid NP generation allowing her to generate critical stars, and NP generation relatively well and her Noble Phantasm is Buster type with a nifty side effect of blocking the first buff casted on the target. At the time of her release, Jeanne Alter is the gold standard of offensive servants, being able to quickly nuke down boss regardless of class. The release of Merlin makes her even stronger, and Jeanne Alter stays as some of the best offensive servant years after her release until better options for single target Class Counter caught up to her, and even then she's still the cream of the crop even when she's unable to get Class Counter advantage herself. Her premier position as a main attacker seems to fall off since the game weighs towards AOE attacks, but ask no one else if one absolutely needs a Single Target attacker......
    • Unless it's her summer Berserker version, also considered one of the best Welfare Servant. She trades her Self-Modification for a skill with once-per-turn Evade and increasing NP gain while her two other skills are still oriented towards offensive output (while can also inflict burn on foes and offers an in-built NP charge respectively), and since she's a Welfare Servant it's almost guaranteed to be NP5, in addition to the nature of being a Berserker means she can deliver the pain to anyone not a Foreigner, she's a godsend to anyone who severely lacks a Single Target attacker.
  • Merlin is what happens when you really want an insanely powerful support servant. He provides 20% NP charge and 20% attack to the party with his first skill, his second skill is full party invulnerability, star gen up and enemy crit chance down with a moderate cooldown and the third skill provides 50% Buster up for 3 turns, 3000 Max HP increase and a staggering 100% Critical Damage bonus for a turn. He has a passive that generates 5% NP per turn and at NP1 provides 1000 healing, 5% NP charge and 5 critical stars to the party per turn for five turns. As a result, if you have two Merlins on the field you can have anywhere from four to six of his NP going at any one time. Believe it or not, this is actually him after a nerf from the NPC version in Babylonia, which also provided a 3000 direct heal on top of the heal per turn. As a result, he basically defined the metagame for a really long time, with various gimmicks seemingly targeted directly at stopping him, such as a Saber Alter Memorial Battle where she's programmed to attack Casters exclusively before any other target, or explicit Buster Card-resistance on some bosses, which has considerably crippled him, but really, it's nothing too painful to deny the potential he offers. He brings the pain with superpowered Buster crits, and has great sustain to go with it.
  • Heracles, while already a solid Berserker on his own, reaches this status thanks to his Bond CE - Castle of Snow, which grants him three layers of Guts. Because of the way Guts works, if your last remaining Servant revives via Guts, then the turn immediately ends without a chance for the opponent to finish you off. As a result, triple Guts combined with Herc's own Mind's Eye/Battle Continuation combo means that Herc is guaranteed to last for five or six turns if he's the last Servant you have. Combine this with great attack even for a Berserker, plus the NP charge he gains from being hit, and Herc can easily take an otherwise guaranteed defeat and turn it around into a victory. He's also not that difficult to get if you know what you're doing, having appeared in several free giveaways as well as being available in the Start Dash gacha (meaning you can just reroll accounts until you have a Herc at the very beginning, giving you all the time in the world to level up his Bond).
  • BB's summer version at first might not seem like much, her stats being somewhat middling for an SSR Servant and Moon Cancer only being able to deal effective damage to Avengers, which are uncommon enemies at best. Her first skill is Self Modification, which while at EX rank is pretty powerful and helps her damage quite a bit isn't too mindblowing. Her second skill is where things start tipping more towards the broken side. Golden Pig Cup at max rank gives her (and yes this is all one skill): An NP gauge charge of 50%, a 3,000 hp heal, 20% Buster up for 3 turns, 50% NP damage up for 3 turns, and a one time evade just to cap it all off. At 7 CD at level 10. While this is more than most Noble Phantasms can accomplish in one skill, it is somewhat justifiable by her aforementioned stats and class, with it ultimately just allowing her to keep up with other offensive Servants damage wise rather than surpassing them. So why is she listed here? Three words, and her final skill: Faceless Moon EX. This is, without question, one of the best skills in the entire game, allowing BB to "lock in" the current hand of cards for three turns, meaning that another new hand will not be drawn in that time. This is, frankly, beyond ludicrous and allows for terrifying synergies. Are you annoyed that your Merlin and Jeanne Alter team is too reliant on RNG for those glorious Buster Brave chains? BB has you covered! Maybe you'd like to have as many Arts cards as possible when using a Servant like, say, Hokusai so you can debuff the enemies defense into oblivion? No problem! Want an Assassin like Jack to always have three Quick cards, thus guaranteeing 50 stars for three turns, while also going through enemies like a chainsaw if you have Skadi? Your kouhai is here to serve. And the real kicker? At level 10, the cooldown is only six turns. The downsides which prevent it from becoming a full-blown Game-Breaker is shuffling the deck or swapping out party members (such as any deaths) will prematurely cancel the skill, and waiting for a good hand to lock with the skill is also time-consuming (sometimes probably life-threatening) with the RNG mechanic, but it's still too good for making every possible builds even stronger for three turns, and the possibility to subvert fundamental game mechanics.
  • Cu Chulainn (Alter) is what happens when you get rid of the Berserker class' Glass Cannon weakness. While his Lancer incarnation is merely Boring, but Practical, having great skills for survivability and endurance but low damage due to his rarity; His Alter form alleviates the low damage due to being a higher rarity and a Berserker. While his Protection from Arrows is a rank lower (lower defense buff and a 2 turn dodge instead Lancer's 3), it's a small price to pay. He also trades Disengage for a new skill, Madness of the Spirits, which lowers the opponent's Critical Rate and Attack for 3 turns to give him and your team even more survivability. His NP even buffs his own Attack and Defense for a single turn before it activates. This makes him, along with the aforementioned Jeanne Alter, one of the best general use boss killers in the game, trading the latter's high burst damage for more endurance.
  • Miyamoto Musashi, as befitting of the legendary swordsman, is perhaps the strongest single-target Saber in the entire game. She has pretty good stats, a decent amount of hits on all her cards, and overall decent Crit Star and NP generation capabilities. What lands her here, however, is her Card Deck and three skills. Unusually for a Saber, Musashi has a three-Buster one-Arts one-Quick deck, which means she can hit quite hard and crit even harder. Her skills are pretty great too- her second and third skills are great, being a solid Buster buff and 1-turn invulnerability rolled into one, and the other being an Invulnerability pierce and debuff cleanse. However it's her first skill and Signature Move, Fifth-Force A, that catapults her into incredible territory. Fifth-Force is one of the most unique skills in the game, halving her attack and causing her to hit twice when attacking with a card for a single turn. At max rank her attack is merely reduced to 80%, and the result is that for one turn Musashi's burst goes through the roof, and her card effects nearly quadruple in effectiveness. It's not uncommon to see a Fifth-Forced Arts card refill Musashi's entire NP gauge by itself, and to say nothing of critting on one of her Fifth-Forced Buster cards. As a result Musashi can do tons of wacky stuff like firing off her (quite strong) NP twice in a row, or generate enough stars to fill the limit and then some.
  • Minamoto-no-Raikou (Summer). For a 4-star unit, she can surpass even 5-star Lancers for being the best one in the class when it comes to sheer offensive power. While her regular Berserker version is one contender for game breaker status who is only held back by her squishiness, heh, summer Lancer retains a similar power level on a Lancer class. Both of Lancer Raikou's card damage boosting skills lasts 3 turns, with being a generic charisma, and the other being a loaded 3 turn 40% Buster buff with 6 turn Cooldown. Her last skill is a simple 1 turn critical enabling buff, but since her Noble Phantasm produces stars in its own right, Lancer Raikou is able to easilly work around it. What truly pushes Lancer Raikou further is her cardset, while her Lancer esque(2 Buster, 1 Arts, 2 Quick) cardset is otherwise unremarkable, her Arts card is significantly better than normal allowing an Arts third card critical from her to quickly refill her NP gauge. As a cherry on top, Lancer Raikou skills are also targetable giving her some form of flexibility in usage.
    • To a lesser extent, Ibaraki Douji (Summer) is also this being basically Raikou with her cards more slanted towards Quick card, featuring 4.24 NP gain on Quick. This NP gain on quick card is further boosted by Demonic Magic (Water), essentially the exact same skill as Summer Nitocris Purposefully Overpowered third. With it active, Ibaraki's Quick card is every bit as good as Okita Souji's Quick card allowing her to quickly generates NP gauge. While Ibaraki is decidedly considered worse than Raikou, thanks to weaker card damage, and less flexibility, her power is very much comparable to Raikou to the point of being nearly interchangeable.
  • Gilgamesh used to be a Tier-Induced Scrappy. In theory, his Noble Phantasm, Enuma Elish is extremely broken, with a unique property of getting super effective damage against the vast majority of servant having the "weak to Enuma Elish" attribute. However, Enuma Elish was infamous for having the damage output of a wet paper thanks to the relatively low damage scaling of Buster AOE Noble Phantasms, and lacked a way to boost it further without outside support. His skillset was also fairly basic, Charisma boosts attack, Golden Rule makes you fill NP faster, and Collector EX makes it significantly easier to crit. He used to be extremely broken early in the game lifespan due to the wonky crit star mechanic, but as time goes on, said mechanic is changed to his detriment, and he was stuck as a servant who focused entirely on his relatively underwhelming Noble Phantasm. This all changed after an update gave him an overloaded Noble Phantasm upgrade: on top of the standard damage boosts, said upgrade also gave him a pre-casted 30% boost towards NP damage. Due to how NP damage boosts are calculated, the upgrade is so significant, that a post upgrade Gil at NP1 would outdamage pre-upgrade Gil at NP5! With this upgrade, not only does Gil now have incredible damage output with his NP, it basically deals as much damage as a standard single target NP against Servants, which makes up the vast majority of difficult content in the game. Gil would later on be buffed further by changing Collector EX into Treasury of Babylon, which gave up to 30% instant NP charge allowing Gil to access his Noble Phantasm more quickly. And since he's Buster based, he really appreciates support from Merlin and Nightingale. The current version of Gil is commonly considered to be one of the most valuable damage dealers in the game, thanks to his powerful NP damage, and thanks to being an AOE who do as much damage as an ST servant, Gil is able to handle almost every situation, and a passable option for farming if you don't have a more competent option with shorter animation time. The King of Heroes' power makes him one of the best options for both single boss-based and Boss Rush based Challenge Quests.
  • Arjuna Alter, he's arguably one of the strongest, if not, the strongest AoE Berserkers in the game with a kit similar to (if not, better) than Minamoto-no-Raikou (who's already a powerful, well-rounded, AoE Buster Berserker on her own). He has a very synergistic kit with his first skill boosting his own damage, which is his damage is even further boosted against enemies with debuffs. His Noble Phantasm happens to apply a Buster resistance reduction debuff to all enemies before his Noble Phantasm damage, ensuring that he deals a ton of all enemies in his path when combined with his first skill. His second skill is an on-demand NP charge skill, which doubles as a critical star absorption skills specifically for his Buster cards, meaning he's also very suitable on single target boss fights after using his Noble Phantasm, ensuring lots of Buster card critical damage that follows. And unlike Minamoto-no-Raikou, Arjuna Alter happens to be very tanky. If the player invested a lot of resources on getting his own Bond Craft Essence, the craft essence bestows himself Invincibility for 3 attacks, and that's one top of his third skill that bestows himself Guts and HP regeneration per turn. If the player can feed him enough critical stars, he can ensure all of his enemies are defeated with his critical hits of his Buster cards. Pair him with the aforementioned Merlin above, and he'll mow down any enemies that stand in his way.
  • Fujino Asagami is considered to be the strongest 4* Archer in the game. Despite her naturally Glass Cannon stats, her Glass Cannon status is compensated with her third skill, which bestows herself a 2000 damage cut at max rank and Guts despite her third skill giving herself a 2000 maximum HP demerit. This means most of her opponent's normal damage attacks will mostly be doing single to double digit damage, even against Berserkers. And on top of that, her first two skills provide her a ton of damage as well as allowing to break through two layers of defense. Her first skill, Mystic Eyes of Distortion, amplifies her Buster card damage, increase her NP generation rate, and ignore Defense. Combined with her Territory Creation passive, this allows her to build up her NP bar fairly quickly as well as punishing bosses with defense up gimmick (especially when her Art Cards crits). Her second skill is her own unique Clairvoyance skill that applies Sure Hit to herself and gain critical stars, meaning her attacks not only punishes bosses with defense up, but also bosses that would try to survive her Noble Phantasm with an Evade. And speaking of her Noble Phantasm, her Noble Phantasm is not only capable of inflicting a ton of damage, but applies a buff block status and attack down debuff. This means not only her Noble Phantasm negates any nasty self buffs effects, but when combined with her defensive damage cut skill and the attack down effect from her Noble Phantasm, your opponent's normal attacks will almost be dealing zero damage. In fact, her damage output is so high that an NP1 Fujino will outdamage Chloe von Einzbern (a solid 4* Archer that the player can obtain to NP5! for free). When grailed to level 100, she'll even outdamage some of the 5* Archers in the game, including Gilgamesh and even Summer Artoria. If the player manages to get her to at least NP2, she can even solo some of the hardest contents in the game thanks to her third skill providing her a lot of survivability. Pair her with the aforementioned Merlin, and she'll tear up anyone who opposes her in her path with lots of healing and protection from Merlin.

  • Mash Kyrielight, your beloved kouhai that has been with you ever since you started the game, becomes one of the best support servants in the game after you clear Camelot. Her first skill goes from just a decent party defense boost to adding a massive 2000-damage cut for one hit with a short 5-turn cooldown. Her Noble Phantasm, Lord Camelot, boosts your party members' Attack by a good 30% alongside a significant damage cut and defense boost too, and should she perform an Arts Brave Chain while her third skill is up (taunt and NP generation massively boosted), her NP can potentially be up again for the next turn, making your party nearly invincible for a couple turns! And to top it off, she has 0 cost, meaning she can be fielded in any party with ease. Unfortunately, if you're playing through the Lostbelt, her kit becomes significantly nerfed, and while she's still very much usable, it's not as powerful as her awesome defensive kit beforehand.....Though this disadvantage only applies in Lostbelt stories, as you can use her pre-Lostbelt form at will in any other quests.
  • Zhuge Liang (Waver) is the best general support Servant in the game. His skills are all buffs and using each skill fills the NP bar of whichever party member he used it on. Two of his skills are party-wide general attack and defense buffs with damage plus and damage cut as a bonus respectively, making them the strongest and most reliable offensive and defensive buff in the game. His NP stuns the enemy, afflicts poison, lowers defense and — most importantly — reduces NP charge, which combined with his NP-filling skills and three Arts card deck can be easily spammed against the enemy. He doesn't even need a specific CE to function greatly in any team and his personal Bond CE is just the cherry on top of all the other buffs he provides. The NA version retains all of these updates from day 1, making him the most sought-out after Servant by newbie players due to his general usefulness on any kind of content, whether farming nodes or battling bosses. He also works extremely well with Merlin, Skadi, and Tamamo, and bringing him and any of the aforementioned three in a team makes general quests quite easy, and greatly eases the difficulty of hard bosses and quests.
  • Jeanne d'Arc makes the jump from Tier-Induced Scrappy to Game-Breaker status thanks to her NP upgrade combined with her three Arts cards loadout: the pesky stun is removed and replaced with an amazing party debuff cleanse. This buff significantly improves the re-usability of Jeanne's NP to the point that it's very likely to have her NP back up again by the next turn. Team her up with further defensive and NP oriented supports such as Waver, Mash, and Tamamo and you have a team that is nearly impossible to kill, albeit very slow and hilariously boring to play with. Outside of that aforementioned team however, she's considered one of the best supports in the game, and is versatile enough to fit in any team thanks to how strong her NP is.
  • Tamamo-no-Mae is the premier support for Arts servants. She sports an extremely useful and powerful NP that can recover health (at NP1 provides 1000, 2000 after her First Interlude), reduce party skill cooldowns by one, and restore at least 25% NP for her team. Her skillset consists of Curse, a simple enemy charge drain, Morph, a massive Defense boost to greatly help her survivability, and lastly, one of her main selling points, Fox Wedding EX, a massive 50% Arts performance boost as well as a generous 2500 HP heal. This allows her to drastically increase the utility of any Arts Servants on your team, whether they be single-target damage dealers (e.g. Vlad III, Archer Altria, Chloe, Saber Lancelot, Ryougi Shiki, BB, Astraea), multi-target damage dealers (e.g. Rider Mordred, Hokusai, Antonio Salieri, Anastasia, Murasaki Shikibu), debuffers (e.g. Shuten-douji), or supports (e.g. Nero Bride, Jeanne, Mash, Gao Changgong). Her presence in an Art-oriented team is so important that when she is combined with suitable Servants, they can form a team to prevent their foes from using their NP damn near forever, or forming up a Mighty Glacier which can slowly but surely grind their foe to death. And come New Year's 2019, she gains a strengthening quest to upgrade her Curse skill to also give her teammates a powerful 30% increase in Noble Phantasm strength, solidifying her role in the Arts meta. She brings the pain with superpowered Arts Noble Phantasms, with ridiculously amazing sustain to go with it.
  • What's that? You don't have any of the four super Casters or failed to roll them?! Oh, don't beat yourself up over it, Hans Christian Andersen has got your back! To note, his skills include a party-wide critical boost, as well as a skill that generates stars per turn. Given that critical hits in this game are already overpowered, this helps make your team crit harder and often. His second skill allows him to generate most of his Noble Phantasm gauge on the fly, with numbers much higher than other competitive values. His Noble Phantasm is based on chance, but if all his buffs hit, your party will obtain a sizable attack, defense, and crit star drop rate boost (which synergizes with his first skill, by the way) and a guaranteed heal per turn. With all this power, you would expect him to be rare, but nope! He is a 2 star servant you can obtain in the Friend Point gacha. Needless to say, you can count the number of F2P players that do not have this cute little author fully maxed on one hand, and even whales use him in certain setups due to the sheer versatility of Hans in any team compositions. This power of his increased from a rank up quest that removed the debuff on his Innocent Monster skill and gave it a targetable NP gauge boost per turn, speeding up any team compositions using him without sacrificing defense.
  • Similarly, Euryale is an easy to raise 3* servant, and yet is one of the best tools in the game for dealing with difficult content. Her kit is deceptively simple: a skill that attempts to drain a bar from the enemy's charge gauge while filling some of her own NP gauge, a skill that inflicts Charm on Males with a high degree of success, a three turn self-Arts boost, and a Noble Phantasm that inflicts scaling-with-NP-level Special Attack damage to Male enemies, with a chance to also Charm them and reduce their attack power. However, the key to it is that it all synergizes extremely well, both internally, allowing her to rapidly charge her NP while stalling the enemy, reducing their damage output and slowing their charge while denying them turns, and externally, fitting very well with many common Arts-based supports, not least of which is Mash, whom every player has access to. And the Special Attack scaling on her NP is incredibly generous, letting her hit well above her weight class while fighting enemy bosses, potentially shaving off entire Break Bars with a single use. Her major weakness is that her shtick only works on Male enemies, and works best when they are Male Sabers or Berserkers... but, from Gawain in Camelot to Megalos of Agartha, there are a lot of very-powerful and difficult Male bosses that fit those categories, and Euryale can easily carry a team through them with comparatively little investment compared to other potential solutions by simply acting as the hammer in an otherwise-defensive stall team. And even into the Lostbelt content where Berserker and Saber male bosses are introduced with hefty Charm resistance, Euryale provides a lot of damage and utility when compared to her higher rarity counterpart, Orion.
  • Saber Lancelot. The Knight of the Lake boasts such incredible critical damage output for a 4-star Saber, that he can rival even a 5-star Saber's damage. His first skill gives him a generous 20 stars to help him get going on his critical spree, and his third skill gives him even MORE stars at 15 every turn, as well as boosting his critical damage for that duration as well. And to help him even further, he has his Berserker self's Eternal Arms Mastery skill, increasing his star absorption by 6000%, basically guaranteeing that his command cards will absorb enough stars to deal critical damage. That's still not getting into his powerful Noble Phantasm, which not only boosts his Arts power by 30% before dealing damage, but also causes the enemy to take an increased fixed amount of damage per hit, and should he score a critical Arts Brave Chain, he can potentially have his NP back up again by the next turn, which also makes him quite the powerful NP spammer.
  • BB is considered one of the best welfare servants in the game thanks to her versatility as both a supportive and an offensive unit. One of her main selling points is that she murderizes Avengers hard as a Moon Cancer, already making her very valuable. Her skill set boasts a potent heal, debuff cleanse and immunity on a very short 4 turn cooldown, an evade/invincible removal that can also stun, and Self-Modification EX, a huge boost to her star weight and critical damage, which enables her to bring the pain and spam her NP, which not only hits hard but also generates 20% NP gauge for the entire party. She also has perfect synergy with Tamamo, as not only is she an Arts-oriented unit, but when played right, they can spam each other's NP and skills easily while both staying alive and bringing pain to the enemies. And what's more, since she's a free servant, she's basically guaranteed to have her NP level at the maximum, and the materials needed to max her skills are notably fairly uncommon among other servants, making it pretty easy to max her out.
  • Shi Huang Di. On paper, he seems to be your usual Ruler, with lots of HP but low Attack, so naturally, he's nothing more than a glorified punching bag, right? Hahaha, NO. His Noble Phantasm grants him a boatload of powerful buffs, which are: a 50% Attack and critical damage boost at NP1, a 300% critical star absorption buff to help him dish out those powered up critical hits, and a 1 turn invincibility and taunt to tank whatever attack dares to hit him. His skills are also quite powerful, which feature an enemy wide charge drain plus a defense debuff, an enemy wide stun plus an additional 30% attack boost for Huang Di, and lastly, an NP battery which charges 50% of his NP gauge, removes his debuffs (letting him bypass pesky buff blocks and NP seals) and recovers up to 3000 HP. And since his Noble Phantasm is Arts-based, it's perfectly plausible for him to have his NP back up when he lands those crunchy critical hits with an Arts Brave Chain (albeit with some assistance from supports like Tamamo, Paracelsus, and Waver) or by using his third skill, letting him stack boost after boost to ramp his damage to truly ridiculous levels (under the right conditions, Huang Di can have up to 150% Attack and critical damage at base NP level, and that's not counting the other buffs he may receive from support). When built and used properly, this Chinese emperor can trivialize almost any Challenge Quest that events throw at him.
  • Sima Yi (Reines) isn't exactly a game breaker by herself, but her main selling point is her Noble Phantasm. The defense and critical rate debuffs are nice and all, but its true purpose is to nullify class disadvantage for 3 turns.. This is one of the most versatile buffs in the game depending on your team composition. Are you bringing Casters like Waver, Merlin, Skadi, or Tamamo, but the quest has pesky Riders who could kill them too early? Reines has your back covered! Are those enemy Berserkers being a major pain in the ass to your team? Reines will protect you! Or say, do you want your Mysterious Heroine XX to be able to destroy Foreigners without getting destroyed herself in the process? Reines is here to help. Ooh, here's the best part: how would you like to have your powerful Berserkers like Raikou, Cu Alter, Hijikata, Heracles, and Mysterious Heroine X Alter be able to unleash their fury without fear of getting smacked down themselves, or to have Nightingale be the insane tank she was meant to be? And the cherry on top, is that Reines' NP gain is just straight up bonkers, letting her spam this powerful NP pretty often thanks to her skill set that provides NP charge. And as a nice bonus, using her NP cleanses Reines' own debuffs every time! Your enemies shall fear this girl and her mercury maid!
  • Katsushika Hokusai is one of the best damage dealers for Challenge Quests. Firstly, her NP is an Arts-based multi-hit AOE attack, so her NP generation is absurd. This means she's going to spam her NP like no tomorrow in an Arts team. As for damage, she's a Foreigner which means she'll deal neutral damage to almost every class, barring the very rare Alter Ego. Her NP also deals increased damage against the Human attribute, which most enemies and Servants will have, making her surprisingly versatile. Her third skill, however, is what makes her utterly insane. For 3 turns, every Arts attack she lands decreases the foe's Defense by 20%, which means an Arts Brave Chain landed by her leads to a hefty 60% Defense reduction. This means, on a Challenge Quest with 3 Servant enemies, she can spam an absurd amount of AOE damage, while also debuffing their defenses. And if you can get your hands on a fully limit broken Black Holy Grail, kiss those losers goodbye!
    • Her summer Saber version is also considered one of the best single target Sabers in the game. Her skillset is fairly similar to Saber Lancelot's, having an NP charge with stars, and a hefty star weight skill with built in Guts. Her third skill is where it starts getting nuts. For 3 turns, aside from a 30% Arts boost, every critical hit she lands boosts her critical damage by 20% for 3 turns, so if she crits on all 3 of her cards, that's a 60% critical damage buff already! So with some assistance from Summer BB, She can potentially stack her critical damage up to a massive 180%! That's still not getting into her powerful Noble Phantasm with a built in NP damage buff before damage, letting her really dish out the pain. And the best part? She's a welfare servant!
  • Nagao Kagetora is a long-awaited welfare single target NP Lancer and she's amazing in her job even with Simple, yet Awesome kit, rivaling 5* Lancers and the aforementioned Summer Raikou. Her 1st skill buffs herself with Arts with star absorption, her 2nd gives her 1 turn dodge and NP gain up, and her 3rd gives party increased attack power, critical damage and star drop rate. Her Arts NP having multiple hits makes it spammable especially with her first two skills active and outside Arts buffs. It can also removes enemy offensive buffs and being a welfare whose NP can be easily raised to max level, will surely bring massive damage.
  • The 4th anniversary dropped seven low-rarity servants into the Gacha to mess about with as thanks for players. While all of them are good for different reasons, the strongest of them all is easily Chen Gong, who has a ton of extremely dangerous mechanics going for him. While his first skill is a targetable taunt, it's not particularly useful. His second skill immediately picks up the pace, being a slightly weaker version of Waver's second skill, which is rather impressive for a measly 2* servant. His final skill is also rather impressive, being a 1-turn version of Merlin's third skill that only applies the Critical Damage boost if the target is a Berserker. This turns Chen into a budget Merlin of sorts, but his Noble Phantasm is easily his most unique- it's an AOE that does massive damage in exchange for killing one of your Servants on the field note , allowing another one to take their place. This means Chen is a fantastic farmer, being a sort of "Inverse Arts Arash" who can sacrifice an ally for massive damage. But there's more: since his Noble Phantasm is Art-based, clever use of Craft Essences and Servants mean that this Noble Phantasm is spammable (and much easier to build than Skadi system, see below); and since Guts will still work as intended, combining with Servants skills (like Nero) or Craft Essences will make sure those like Hijikata, Anne & Mary and Ashwatthama can unleash their most powerful attack almost immediately without the frustration to adjust their HP. Chen Gong has been rated as one of the most useful (if not powerful) Servants only hours after his release, and it's not without reason.

  • Scathach-Skadi, while not exactly as omnipotent as Waver and a bit more niche than Merlin and Tamamo above, is the premier support servant for Quick-based servants. Her first skill, Primordial Rune, is one of her main selling points, being a massive 50% Quick card boost on par with Merlin's Buster and Tamamo's Arts, as well as a 100% critical damage boost for Quick cards as well. Her second skill, Freezing Blizzard, provides a potent 30% Defense debuff (effectively a 30% Attack boost, which is higher than Merlin's own Charisma!) and critical rate debuff to all enemies on the field, which greatly boosts her team's damage output. Lastly, her third skill, Great God's Wisdom, is a simple 50% targeted NP charge on one ally. This sounds nice and all, but what exactly does she provide? Why, she's absolutely amazing for farming teams. AoE-based Quick servants such as Edmond Dantes, Marie Antoinette, Achilles, Valkyrie, Parvati, and even Berserker Lancelot and Atalanta (who are notorious for their awful NP gain) can take advantage of the boosted refund after two Skadis' Quick boosts from their Noble Phantasms to refund at least 50% of their NP gauge, in which Skadi can then top their gauge off with her third skill to let them reuse their NP in the next turn. With that, most 3-wave quests can be cleared in only 3 turns, without even needing to rely on Order Change! That's not even mentioning the absolute shitload of critical stars that get generated, which practically guarantees critical hits every time. And if you aren't farming and instead fighting bosses, you can simply do what Merlin does, and take already powerful Quick servants such as Rider Kintoki, Jack the Ripper, and Kama mentioned below, Lancer Scathach, and Okita Souji, give them a good dose of Primordial Rune, and watch them utterly destroy the boss in only a few attacks. Scathach-Skadi is widely praised as the saviour of the Quick meta, and it really shows with the potential she offers. She brings the pain by sacrificing sustain to have both superpowered Quick Noble Phantasms and critical hits.
  • Edmond Dantes went from a Tier-Induced Scrappy (compared to the other Avengers) to being one of the most powerful AoE Servants in the game thanks to Scathach-Skadi's arrival. Dantes in particular is a stellar example of the things Skadi can do. He can combine his Golden Rule skill with two Skadis' Quick boosts to let him easily refund at least 50% of his NP gauge, in which Skadi can top his NP gauge off with her third skill to let him use his NP again on the next turn, making him an extremely powerful farming servant. Aside from farming quests in 3 turns with ease, since he's an Avenger with an incredibly hard hitting Quick NP with high damage scaling (while dealing at least neutral damage to 99% enemies on the roster), he can also chunk high health enemies pretty hard with his NP, and then destroy them with his super powered critical Quick attacks, which is pretty similar to Jeanne Alter, who destroys enemies with boosted Buster criticals thanks to Merlin's Hero Creation.
  • Sakata Kintoki (Rider), in part due to the massive advantage of being a free servant with extremely accessible NP5, is probably the main reason why Quick-based Servants weren't completely overshadowed by their Buster and Arts-focused counterparts (before Scathach-Skadi's arrival). With the insane amount of synergy he has with his attacks, NP gain, critical star gain, and a skill that charges half of his NP gauge you'll have him running enemies over repeatedly if he's ever given a chance. Unlike the reliance on Mana Burst-type skills on most Servants at the time, his Quick buff lasts for three turns on a competitive value, while his NP adds another Quick buff which can be boosted to a much higher amount when boosted with overcharge. Under optimal conditions, Kintoki Rider can run over a target with his Noble Phantasm for three turns, (the duration of his buffs). If you add in Skadi to the mix... hoo boy. Kintoki Rider is so powerful that he's speculated to be the reason why there haven't been a single SR rarity rider almost 3 years since his release (with the exception of Mordred (Rider) who was initially released a month after his event).
  • Jack the Ripper is considered as one of the best Assassins in the game due to her versatility. Her NP deals huge damage and gets even bigger if the target is female and the damage bonus is carried over in her next chained attacks. Her skill set are geared with Quick performance up, Evade, enemy buff removal and a healing skill with short cooldown. Her card deck is Quick-oriented which each Quick card generate lots of stars and NP gauge, which enable her to spam her already hard-hitting NP. And this isn't even taking into account Scathach-Skadi's buffs, too!
  • Kama rivals Jack the Ripper as one of the strongest single target Assassins in the game thanks to her powerful kit. Her Noble Phantasm boosts her Quick performance for 3 turns before dealing damage, and carries a high chance to charm the target with no restrictions, which not only makes her one of the strongest Servants for the charm lock strategy, but also allows her to snowball in her damage output once she gets going. Her first skill grants her or an ally an overcharge level in their Noble Phantasm and heals Kama for an incredible 4000 HP, and while the demerit that comes with it (Max HP reduced by 1000) is permanent, it is often negligible. Her second skill gives her a simple and effective 30% Attack boost and a Guts buff that lasts permanently until it is triggered, greatly increasing Kama's survivability in longer fights, not to mention its very low cooldown for a Guts skill at only 6 turns. Her third skill, Mara-Papiyas, is quite loaded. Aside from charging her NP gauge by 50% and boosting her critical damage by 20%, it also decreases all enemies' Charm resistance by 40%, letting her land her NP's charm more reliably, and has the added bonus effect of giving her class advantage against Alter Egos, who are notorious for being a pain in the ass to face thanks to having no real weaknesses save Berserkers. Her NP gain is also pretty great, letting her spam her NP with more and more ease as she gains more Quick boosts. All in all, an incredible showing for Beast III/L.
  • Berserker Lancelot went from a Tier-Induced Scrappy to outright a must have 4-star unit after Skadi's release. What happened? He became one of the most reliable 3 turn farmers thanks to the Nordic goddess. To begin with, he got a Strengthening Quest (back then in 2017) that granted him a third skill, a buff to his NP generation rate. By using this skill in conjunction with Skadi's Quick buff (or two), Lancelot can easily fill 50% of his NP gauge back when using his NP (it would have to be a limit-broken Kaleidoscope for him to do this at the very first turn), enabling him to use his NP again on the next turn (and the turn after) with Skadi's NP charge skill. Now, the catch that Lancelot's NP grants him an ATK buff before activation... so on subsequent NP uses, he will stack those buffs like no tomorrow! Moreover, when facing an enemy with 100k+ HP on the 3rd stage of a node, Lancelot can just pop his first skill to absorb those gazillion critical stars generated from NP, enabling him to land crunchy critical hits buffed with 3 ATK buffs from NP and 2 Skadi Quick buffs. This all makes him a go-to unit in any farming node as he's a Berserker which doesn't care about enemy units composition. As a bonus, this composition also frees you to equip any CE in your other team member, as you only need a limit broken Kaleidoscope, letting your other party members to equip any event CE. Although to achieve this ridiculous feat, a fully limit broken Kaleidoscope is required in team compositions, limiting the availability of this strategy somewhat.
  • Cu Chulainn. He has a three attack evade with a defense boost, a heal that also removes any debuffs, a skill that grants himself Guts, and a strong single target Noble Phantasm that inflicts a defense down debuff on your opponent. He has incredibly good solo potential for some of the hardest content (especially if the opponent happens to be a Berserker or an Archer). While his skill set looks like something you would see from a 5* Lancer, he's fortunately just a humble 3* Lancer that you can potentially pull five copies of from the Friend Point gacha, meaning you can easily max out his Noble Phantasm. In fact, he arguably the best 3* Servant out of all the 3* Servants simply because of his sheer survivability. And when's he grailed to level 100, he can easily solo carry some of the most challenging Challenge Quests by himself when a team setup might prove difficult. He also gets a Strengthening Quest where his Noble Phantasm allows him to bypass enemy evasion and possibly deal the finishing blow on any bosses that would use it to survive another turn.

  • A significant amount of 4* Servants you can obtain for free via playing events also fit here. Even after three years, Shiki is still one of the absolute strongest Arts-based single target Assassins (with a recent Strengthening quest to her NP making her even more bonkers), Kintoki is still a hilariously broken Quick-based nightmare of a Rider (even crazier with Skadi), and Chloe is simply one of the best single target Archers in the game, bar none. While there are some welfare Servants that fall short like Assassin Scathach, the vast majority are extremely good in their designated roles, and can help any master who is trying to save their Quartz by providing them some good alternatives for Servants they may want to roll for.
  • While less powerful than the four super Casters (Merlin, Tamamo, Scathach-Skadi, and Waver), Helena Blavatsky (Caster version) deserves mention for possessing an excellent combination of incredibly versatile support abilities. At max skill level, her first skill gives 20% NP Charge to the entire team, her second skill gives 5 Crit Stars per turn with a chance to buff her own NP Strength by 80%, and her third skill is a 3-turn 20% buff to all cards for everyone. Her Noble Phantasm, meanwhile, is a reasonably powerful Arts-based attack on all enemies (ignoring Defense buffs if you've done her interlude)... which also debuffs their Debuff Resistance, Critical Rate, and Defense for 3 turns; at NP5 with maximum overcharge, these debuffs can even reach a massive 50% each! Furthermore, as a fairly standard 3-Arts Caster, she can spam this debilitating Noble Phantasm quite effectively. While Helena herself is an Arts-based Servant, she can fit well enough in literally any team you field thanks to the ability to provide support to any attacker you happen to use, or even fulfill that role herself if necessary.
  • The Follow system, currently only in the Japanese server. For new players who have yet to complete Part 1, you can follow 3 players regardless of their approval that lets you borrow their Servant just like a friended player (which means they can use their NP). You can just look for a gigantic whale's (players with full NP5 SSR maxed Servants) Friend ID, Follow him, and let them carry you until you beat the final boss' arrogant ass. With this system, newbie campaign, and permanent 1/2 AP on Part 1, you can complete the game easily on just under 3 days, opening you to enjoy events which need Part 1 completion.


Mystic Codes and Craft Essences

  • Amongst all the Mystic Codes, the Chaldea Combat Uniform is far and away considered the best by a wide margin. Its Game-Breaker status derives from its unique third skill, Order Change, which allows you to swap one of your frontline Servants for one of your backups. It is the focal point of nearly every 3-turn grinding strategy out there (mostly by letting you swap in a Servant with a CE like K-scope or Imaginary Numbers), but also lets you summon a powerful defense skill on demand to counter an enemy NP (like Mash and Merlin's invincibility skills, or Achilles' Bond CE). Furthermore turns don't pass for servants in the backline so you can buff an attacker servant, swap them to the back and then wait for the buffer's skills to come off cooldown and apply another layer of buffs to that attacker. Alternatively, go straight for burst damage by activating all of a support Servant's skills to the main attacker before swapping that support Servant out for another one to throw on even more skills.
  • Some of the earlier released Craft Essences were made when DelightWorks hadn't quite figured out what works and what doesn't in the game. As such, some of them are extremely powerful. This includes the following:
    • Kaleidoscope gives near instant access to a Servant's NP by granting them 80% starting NP (and it just straight up grants 100% at max limit break). This is a cornerstone in any three turn farming strategy.
    • Prisma Cosmos grants a passive 8% NP gauge generation per turn (10% at max limit break). Equip this to Merlin and enjoy 15% NP gauge per turn, with no drawback.
    • Fragments of 2030 gives 8 (10 when limit broken) Critical Stars per turn making it the focal point of various overpowered critical hit strategies.
    • Black Grail increases the damage of Noble Phantasms by a crazy high 60% (80% when limit broken) at the small cost of 500 HP per turn.
    • GudaGuda Poster Girl, which is only available in the first GudaGuda event gacha. On top of offering a 60% attack boost for the first 3 turns, this craft essence also applies a 3-turn taunt to the equipped unit. The biggest abuse of this Craft Essence comes from using it to force a unit death, which allows you to bypass the cooldown period of buffing servant and nullify up to 3 turn worth of damage. Put into perspective, every single copy of Poster Girl essentially becomes a stronger use of Plugsuit's Order Change when used properly. This is on top of other offensive utilities that a 60% attack boost and getting focus fired for NP gain can offer.
  • Some craft essences the player can obtain for free can be very broken as well:
    • Holy Night Dinner obtained from the 2nd Christmas event is considered to be one of the best Craft Essences the player can obtain, as it grants the equipped servant 50% starting NP gauge, 15% critical damage boost, and 15% NP damage boost when its max limit is broken. The servant pictured in the Craft Essence, Jeanne Alter, is the perfect candidate for the craft essence, as her kit is built around strong critical hits and having a powerful Noble Phantasm. Heck, any servant with both strong critical hits and Noble Phantasm (Miyamoto Musashi, Saber Lancelot, Rider Kintoki, Raikou, Sigurd, etc.) will love this craft essence, as the combination of both starting NP and increased critical damage and Noble Phantasm damage will push them over the top.
    • Golden Sumo obtained from the Onigashima event is even better, as the Craft Essence bestows the servant 50% starting NP gauge and +15% attack boost. The 15% attack boost in particular is incredibly good, as Craft Essences that passively boost attack are very rare. If the player doesn't know what CE to equip on their main damage dealer, then Golden Sumo is considered to be one of the best CE to equip them with.

General Strategies

  • The turtle team consisting of Mash, Merlin, and Jeanne (you can also slot in Reines, Waver, and Tamamo in there) cannot die. EVER. With massive DEF buffs, HP regeneration, debuff clear, two party-wide invulnerability, you can safely slogs through million HP boss with more than 80% HP most of the time (whilst slowly whittling the enemy's HP). Although an invulnerability pierce is a problem.
    • If you're wanting to turtle while also breaking the enemy's neck, the alternate composition of Qin Shi Huang, Merlin, and Tamamo is the answer. The plan is, you use the emperor as a tank/damage dealer hybrid, stalling with Merlin's invulnerability and heal/cooldown reduction from Tamamo. After two stacks of Qin's NP, he'll fuck the poor schmuck's day up with six-digits of damage from his boosted criticals, while tanking all of your enemies' attacks thrown at the party.
  • The Gorgon Sisters' Charm spam, even it's bordering on Awesome, but Impractical, is an almost guaranteed method to stunlock any male bosses without (or with low rank of) Magic Resistance. All of the Sisters has a skill which will stun male enemies, as are Euryale and Stheno's NP (they also have a skill to charge their NP); Lancer Medusa's Charm and NP will both reduce Quick Card resistance for Stheno and Medusa, while Gorgon's NP will provide 15% NP to everyone. Though high skill levels are almost required for the build, using their skills and NP in the right order however, and you'll find their foes can't even move a bit while you grinds them to death.
  • Mass defense buff stacking strategies since defense buffs are stacked additively (as an "inverse attack buff" against foes). The extreme end of this results in taking 0 damage as defensive buffs climb to nearly 100%, and it's why stall-based teams featuring Waver and Mash are so strong and why there are numerous Servants and Noble Phantasms that specifically say they bypass defense buffs (and as demonstrated in the second run of Nero Fest, these effects turn out to "only" bypass 100% defense). Enemies can also abuse this tactic — besides the Siegfried challenge quest in Nero Fest, the common non-Servant Amazoness enemy has a skill that raises their defense by 20% for three turns, and due to how enemy turns work they may well spam this all the way to 100% defense! Meanwhile, there are numerous examples of Servants already packed with defense buffs outright soloing challenge quests, such as Ibaraki versus Tristan in Camelot or two hours of Mash wearing down entire waves of enemies in the "Chocolate Lady's Commotion" expanded rerun challenge quest.
    • On that same topic, mass attack debuffing strategies, which is the same idea except (usually) against a single target. The pioneer of this is Asterios, who can be used against the final story boss in part one among other fights thanks to his 6-turn 20% ATK debuff from his Noble Phantasm plus an additional 1-turn 40% ATK debuff. Once again, it's possible to debuff a 100% attack decrease, leading to enemies doing 0 damage. Nightingale also carves a niche in these strategies, trading in longterm debuffing for a crippling 1-turn 50% ATK debuff and a (multiplicative, not additive) 1-turn 50% NP damage debuff; any damage leaking through can then be healed by the rest of her kit. The tradeoff of this strategy is enemy debuff resistance, but now enemies can't remove or bypass friendly defense buffs — a key factor to this strategy being viable in the otherwise infamously difficult 0-Kiara-Punisher Beast III/R fight.


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