History Characters / StevenUniverseGemMonsters

->'''Voiced by:''' Mason Cook

->'''Voiced by:''' Michaela Dietz

->'''Voiced by:''' Creator/DeeBradleyBaker, Zach Callison

->'''Voiced by:''' Zach Callison, Deedee Magno Hall, Creator/ShelbyRabara, Michaela Dietz, Erica Luttrell, Jennifer Paz, Charlyne Yi, Toks Olagundoye

* AdorableAbomination: The first thing it does after forming and fending off Yellow Diamond's ship]] is give Steven a thumbs-up.

->'''Voiced by:''' Zach Callison, Deedee Magno Hall, Shelby Rabara, Michaela Dietz, Erica Luttrell, Jennifer Paz, Charlyne Yi, Toks Olagundoye

[[folder:The Cluster]]

* AdorableAbomination: The first thing it does after forming and [[spoiler:fending off Yellow Diamond's ship]] is [[spoiler:give Steven a thumbs-up]].
* ArcVillain: For the second season and the opening episodes of the third. [[spoiler:The Cluster itself isn't villainous at all, but stopping its formation drove the overarching plot of the second season.]]
* AstonishinglyAppropriateAppearance: [[spoiler:Its arm form is made of layers of stratum that greatly resemble the musculature of a human arm.]]
* BackForTheFinale: [[spoiler:It returned in "I Am My Monster" to try to hold Corrupted Steven back, and afterwards, hold his hand.]]
* BackupFromOtherworld: [[spoiler:In "Reunited", it essentially serves this role by virtue of being composed of the shards of countless shattered Crystal Gems who return to aid their surviving comrades against the Diamonds. This is invoked in its formation, which gives the appearance of countless wailing spirits rising from the grave.]]

** [[spoiler:When they're awakened by the Diamonds in "Reunited", they choose to manifest themselves as a huge humanoid arm coming from the ground, and they fight against Yellow Diamond while the Crystal Gems are busy fighting Blue Diamond. Eventually, they manage to destroy both of their spaceships before returning to their bubble.]]
** Done again in "I'm My Monster". [[spoiler: When a crazed Monster Steven is about to charge at his friends, the Cluster once again manifests themselves as an arm to hold Steven back, giving his friends some valuable time to figure out how to bring him back to normal]].
* BodyHorror: [[spoiler:When it forms in "Reunited", the part we see resembles a [[FlayingAlive skinless]] human arm]].

* CreepyGood: [[spoiler:When forced to emerge, their wailing ghostly projections form what looks like a skinless, disembodied human arm... which ''gives the Crystal Gems a thumbs up'' and helps them fight!]]
* DoomsdayDevice: The Cluster Gems are just a few shards clumped together. The Cluster itself is millions of shards incubating in the Earth's core, and its physical form will crack the Earth like an egg when it finally matures. [[spoiler:Steven helping and befriending it results in it rejecting this purpose and actively helping save the planet.]]

* EarnYourHappyEnding: [[spoiler: After thousands of years of torment for not being able to feel whole, the gemshards in the Cluster finally find a stable form where they achieve their wholeness through the company and comfort of each other, thanks to Steven teaching them how to bubble themselves]]. Furthermore, In ''Steven Universe Future'', [[spoiler: Yellow Diamond finds an effective way to reconstruct shattered gems and reveals her intention to heal all the gemshards inside the Cluster, meaning that eventually all of them will have a normal life again]].
* EarthShatteringKaboom: If it constructs a body, it will destroy the Earth. [[spoiler:This is only if it forms ''completely'', forming just an arm is fine.]]
* EldritchAbomination: Its true form as depicted in the official artbook as linked below is [[spoiler:a titanic, vaguely feminine monstrosity with TooManyMouths and [[EyesDoNotBelongThere Eyes where they do not belong.]] This horrific form might still be canon given the appearance of its arm in "Reunited", so it's a good thing it's on the Crystal Gems' side and no longer wants to form.]]

* EvilIsBigger: The form it would take upon hatching is expected to be several times bigger than the Earth. [[spoiler:When it partially manifests in "Reunited", it's no longer evil, but its arm is ''miles'' long.]]

* GodzillaThreshold: The only times it has emerged have been to [[spoiler:help the heroes against literally {{Kaiju}}-sized threats: the Diamonds in their giant spaceships and Monster Steven]].
* HeelFaceTurn: [[spoiler:Although it wasn't technically villainous to begin with, Steven manages to befriend it and it ''chooses'' [[SealedGoodInACan to remain in the Earth's core]] as a community unto itself to feel whole instead of forming. When it reappears in "Reunited", it only forms an arm and fights Yellow Diamond's ship to help the Gems.]]
* HoistByTheirOwnPetard: [[spoiler: The Homeworld Gems created this thing with the intent on using it as a planet-destroying time bomb, but when their leaders attack and awaken it with the intent of annihilating Earth, [[TheDogBitesBack the splintered minds within]] [[BackupFromOtherworld have other ideas.]]]]
* HelpingHands: [[spoiler:It takes a partial form in "Reunited" as a giant humanoid arm.]]
* HeroicRROD: [[spoiler:After defeating Yellow Diamond's ship in "Reunited", its form starts glitching, and it returns to its bubble.]]

* {{Kaiju}}: Released pictures from the official artbook reveal its formed size would be ''[[https://steven-universe.wikia.com/wiki/File:Clusteer.jpg colossal]]''.[[spoiler:Just its arm forming in "Reunited" is miles long and equal in size to the Diamonds' personal ships.]]
* {{Leitmotif}}: A meandering, disconnected series of tones with no unifying melody. It can be lonely and alien or a thunderous blast of sound at a moment's notice. [[spoiler:Steven's intervention makes the tones harmonise and become gentle and soothing. It gets a second remix during its appearance in "Reunited" where it becomes a heroic battle theme.]]

* MindHive: [[spoiler:The minds of the Cluster's body share a body, [[SubvertedTrope but individual shards seem to have barely realized the others were in there with them]], despite their desperation to feel whole, until Steven introduced them. Played straight in the end when Steven makes them aware of each other, then convinces them to feel whole by communicating with each other instead of forming and destroying the Earth. When it's finally forced to form, it has gained enough of mind to only form an arm and side with the Crystal Gems.]]
* NonMaliciousMonster: [[spoiler:It has no desire to destroy the Earth, it merely wants to be whole. Steven convinces it to find company in its pieces, and manages to help it bubble itself when it can't keep itself from forming. Solidified in "Reunited" when its gained enough control to only manifest as an arm and promptly turns against the Diamonds to protect the Earth.]]
* OutsideContextProblem: Even more so than the Cluster Gems since the Cluster has been incubating for 5,000 years since the war ended. The Crystal Gems would have had absolutely no idea that it existed until it hatched (and by then it would have been too late) if Peridot hadn't told them. [[spoiler:Turns out to be this for the Diamonds in the end: the idea it could ''choose'' how much of itself to manifest and turn against them without destroying the Earth takes them by surprise and takes Yellow Diamond's ship completely out of the fight.]]

* TragicMonster: Like the smaller prototype Cluster Gems, [[spoiler:the Cluster has no malicious intent. The shards constituting it merely want to find their missing pieces so they can be whole, and are horrified when they find out forming would destroy the planet.]]
* TurnedAgainstTheirMasters: [[spoiler:It was created by the Diamonds to be a super-weapon, but its first act after forming is punching Yellow Diamond's ship and destroying it.]]

* UndeathIsCheap: [[spoiler:In ''Future'', Yellow Diamond is able to repair shattered gems shards, and fully plans to restore the ''entire'' Cluster. Obviously, this will take an ''extremely'' long time, and hasn't happened by series' end.]]

* WoobieDestroyerOfWorlds: [[spoiler:The Cluster doesn't actually want to destroy anything, it just wants to ''be'' something.]]
* TheWorfEffect: [[spoiler:Even it can't hold Corrupted Steven back for long, though its intervention still bought the heroes critical time while they were overwhelmed.]]

[[folder:Kaiju Monster ('''Major Spoilers for ''Steven Universe Future''''')]]
!!Monster Steven
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/monster_steven.png]]
Steven, involuntary shapeshifted into a colossal beast-like half-Gem monster after perceiving himself as one during his last and biggest mental breakdown.

* AmbiguousSituation: It's left unclear if Steven turning into the monster was the mere result of his shapeshifting abilities reacting to him feeling like a monster, similarly to the time he felt old on his birthday and started aging rapidly, or a form of corruption akin to the one the Diamonds inflicted on the gems on Earth.
* AttackOfTheFiftyFootWhatever: The largest single being introduced in the series, it towers over even White Diamond, and is about twice as tall and five times bigger than her. The only thing bigger than it is the Cluster.
* BlackEyesOfCrazy: He has very dark sclera, and much like the other corrupted gems, he has succumbed to madness.
* BrokenTears: When the Crystal Gems, Diamonds, Spinel, Greg, the Cluster, and Connie finally get through to him with their love, he starts openly weeping.
* DraconicAbomination: A huge reptilian creature born from Steven's anxiety and self-loathing.
* EarlyBirdCameo: The monster is present in the antagonists shot from the intro of ''Steven Universe Future'' from the very beginning, but he's not properly introduced until the second-to-last episode, where his true nature as Steven's monstrous form is revealed.
* FaceMonsterTurn: He's Steven, corrupted by his unresolved trauma and self-loathing boiling over.
* FinalBoss: He's the final antagonist the Crystal Gems have to face, being Steven himself.
* GlowingEyesOfDoom: He ominously does this in the intro, pointing his significance above the other antagonists. He also does it in his featured episode right before he releases a shockwave powerful to knock everyone down, even the Diamonds and their ship.
* HisOwnWorstEnemy: The result of having an unsure thoughts of his future combined with his past trauma transformed Steven at the moment his anger provoked his meltdown.
* IKnowYoureInThereSomewhereFight: The entire objective of the Crystal Gems during the fight is to find a way to reach the true Steven beneath the monster and calm him down from his rampage. Stopping Steven by hurting him is left out of the question by everyone.
* TheJuggernaut: The creature is near unstoppable; not even Lapis with her powerful water bindings, the Diamonds with their new-found powers or the Cluster itself are able to hold him for too long.
* {{Kaiju}}: He's as big as the mountain that the temple was built into.
* LongNeck: Has a very long, serpentine neck, adding to his reptilian appearance.
* TheMindIsAPlaythingOfTheBody: White Diamond mentions that this monster "is ''not'' Steven anymore" when [[WillingChanneler trying to link with his mind]], and Sapphire confirms that if they don't do something soon, he would be trapped in that form and state of mind forever.
* MakeMeWannaShout: The only ability Steven uses in this state is a screech, powerful enough to knock over all three of the Diamonds and their ship, dispel Lapis's water chains, and even force Garnet to defuse (if only for a moment).
* MorphicResonance: The shapes of his horns evoke Steven's hair, the upper half of his head is notably similar (especially the nose and eyes), and his body is the same pink colour as Steven's during his breakdown.
* NonMaliciousMonster: It's easy to see from his expressions that he's mostly confused and angry, never directly attacking anyone, just destroying the scenery and unleashing a defensive shockwave, and not resisting when his family comes to give him a CooldownHug.
* NoSell: The Diamonds use of their abilities to help Steven end up being nullified, even White Diamond was unable to reach Steven with her powers.
* NotZilla: Some traits on his design resemble Franchise/{{Godzilla}}, both being long-necked reptilian humanoids created by negative human actions, in this case internal turmoil rather than nuclear weapons. His spikes even glow just before he unleashes his power.
* PsychoPink: A rare male example. But while not exactly psychotic, he is definitely extremely dangerous.
* TheOneGuy: He's the only male Gem Monster.
* SuperpoweredEvilSide: The creature is a culmination of Steven's guilt and trauma, seeing himself as an irredeemable monster after shattering Jasper and attempting to shatter White Diamond, and he's so powerful and unstoppable that not even the Cluster or the Diamonds themselves are able to stop his rampage, at least alone.
* TalkingTheMonsterToDeath: The Crystal Gems restore Steven by reassuring him that everything will be okay, and his family and friends are there for him even at his lowest points.
* TragicMonster: He's the result of Steven having, in his own words after the fact, a big meltdown. He's brought back to normal once everyone brings themselves together to shower him with love and assurance.
* WalkingSpoiler: It comes with being the territory of being Steven's form of self-anger and own thoughts of being a monster.
* WoobieDestroyerOfWorlds: Steven becomes this thing when his trauma and pain finally overflow and explode, causing him to turn himself into a rampaging monster.
[[/folder]]
----

* BrokenTears: When the Crystal Gems, Diamonds, Spinel, Greg, the Cluster and Connie finally get through to him with their love, he starts openly weeping.
* DraconicAbomination: A huge reptilian creature born from Steven's fear and self loathing.

* SeldomSeenSpecies: She is based on a tardigrade.

* AnimalisticAbomination: A huge reptilian creature born from Steven's fear and self loathing.

* BodyOfBodies: UpToEleven, the Cluster Gems seen prior were only made of a few gem shards at most, the Cluster itself is made of thousands, possibly ''millions'' of shards fused into one.

* OutsideContextProblem: [[UpToEleven Even more so than the Cluster Gems]] since the Cluster has been incubating for 5,000 years since the war ended. The Crystal Gems would have had absolutely no idea that it existed until it hatched (and by then it would have been too late) if Peridot hadn't told them. [[spoiler:Turns out to be this for the Diamonds in the end: the idea it could ''choose'' how much of itself to manifest and turn against them without destroying the Earth takes them by surprise and takes Yellow Diamond's ship completely out of the fight.]]

** [[spoiler:When they're awakened by the Diamonds in "Reunited", they choose to manifest themselves as a huge humanoid arm coming from the ground, and they fight against Yellow Diamond while the Crystal Gems are busy fighitng Blue Diamond. Eventually, they manage to destroy both of their spaceships before returning to their bubble.]]

[[caption-width-right:350:[[labelnote:Click here to see the Cluster partially formed.]]\\
https://static.tvtropes.org/pmwiki/pub/images/the_cluster.png[[/labelnote]]]]