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
Favorable Winds 1UEnchantment Creatures you control with flying get +1/+1.
Bria, Riptide Rogue 2URLegendary Creature — Otter Rogue Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Other creatures you control have prowess. (If a creature has multiple instances of prowess, each triggers separately.) Whenever you cast a noncreature spell, target creature you control can't be blocked this turn. 3/3
Ohran Frostfang 3GGSnow Creature — Snake Attacking creatures you control have deathtouch. Whenever a creature you control deals combat damage to a player, draw a card. 2/6
Gargantuan Gorilla 4GGGCreature — Ape At the beginning of your upkeep, you may sacrifice a Forest. If you sacrifice a snow Forest this way, Gargantuan Gorilla gains trample until end of turn. If you don't sacrifice a Forest, sacrifice Gargantuan Gorilla and it deals 7 damage to you. {T}: Gargantuan Gorilla deals damage equal to its power to another target creature. That creature deals damage equal to its power to Gargantuan Gorilla. 7/7
Savage Packmate Creature — Werewolf Trample Other creatures you control get +1/+0. Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.) 5/5
Resounding Roar 1GInstant Target creature gets +3/+3 until end of turn. Cycling {5}{R}{G}{W} ({5}{R}{G}{W}, Discard this card: Draw a card.) When you cycle Resounding Roar, target creature gets +6/+6 until end of turn.
Briarhorn 3GCreature — Elemental Flash When Briarhorn enters the battlefield, target creature gets +3/+3 until end of turn. Evoke {1}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.) 3/3
Bold Impaler RCreature — Vampire Knight {2}{R}: Bold Impaler gets +2/+0 until end of turn. 1/2
Jeering Instigator 1RCreature — Goblin Rogue Morph {2}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Jeering Instigator is turned face up, if it's your turn, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn. 2/1
Changeling Titan 4GCreature — Shapeshifter Changeling (This card is every creature type.) Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.) 7/7
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