Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Biomass Mutation

XG/UG/U · Instant

Creatures you control have base power and toughness X/X until end of turn.

Similar cards

Color identity:
NameManaTypeText
Simic Keyrune 3Artifact {T}: Add {G} or {U}. {G}{U}: Simic Keyrune becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Boldwyr Intimidator 5RRCreature — Giant Warrior Cowards can't block Warriors. {R}: Target creature becomes a Coward until end of turn. {2}{R}: Target creature becomes a Warrior until end of turn. 5/5
Diminished Returner 1BBCreature — Phyrexian Skeleton Diminished Returner enters the battlefield tapped. {B}{B}: Diminished Returner perpetually gets -1/-1, then return it to the battlefield. Activate only if Diminished Returner is in your graveyard and its toughness is 2 or greater. 4/3
Unwilling Recruit XRRRSorcery Gain control of target creature until end of turn. Untap that creature. It gets +X/+0 and gains haste until end of turn.
Sheltering Light WInstant Target creature gains indestructible until end of turn. Scry 1. (Damage and effects that say "destroy" don't destroy the creature.)
The Grand Evolution Enchantment — Saga (As this Saga enters and after your draw step, add a lore counter.) I — Mill ten cards. Put up to two creature cards from among the milled cards onto the battlefield. II — Distribute seven +1/+1 counters among any number of target creatures you control. III — Until end of turn, creatures you control gain "{1}: This creature fights target creature you don't control." Exile The Grand Evolution, then return it to the battlefield (front face up).
Su-Chi Cave Guard 8Artifact Creature — Construct Vigilance Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.) When Su-Chi Cave Guard dies, add eight {C}. Until end of turn, you don't lose this mana as steps and phases end. 8/8
Aurelia, Exemplar of Justice 2RWLegendary Creature — Angel Flying Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on your turn, choose up to one target creature you control. Until end of turn, that creature gets +2/+0, gains trample if it's red, and gains vigilance if it's white. 2/5
Captivating Vampire 1BBCreature — Vampire Other Vampire creatures you control get +1/+1. Tap five untapped Vampires you control: Gain control of target creature. It becomes a Vampire in addition to its other types. 2/2
Rat in the Hat BCreature — Rat Rogue {T}, Sacrifice Rat in the Hat: Until end of turn, you may cast target creature card that has a hat from your graveyard. 1/2
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