Card Codex

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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
Ironclaw Curse REnchantment — Aura Enchant creature Enchanted creature gets -0/-1. Enchanted creature can't block creatures with power equal to or greater than the enchanted creature's toughness.
Ghastly Demise BInstant Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.
Black Oak of Odunos 2BCreature — Zombie Treefolk Defender {B}, Tap another untapped creature you control: Black Oak of Odunos gets +1/+1 until end of turn. 0/5
Rising of the Day 2REnchantment Creatures you control have haste. Legendary creatures you control get +1/+0.
Malamet Battle Glyph GSorcery Choose target creature you control and target creature you don't control. If the creature you control entered the battlefield this turn, put a +1/+1 counter on it. Then those creatures fight each other.
Topan Ascetic 2GCreature — Human Monk Tap an untapped creature you control: Topan Ascetic gets +1/+1 until end of turn. 2/2
Labyrinth Raptor BRCreature — Nightmare Dinosaur Menace Whenever a creature you control with menace becomes blocked, defending player sacrifices a creature blocking it. {B}{R}: Creatures you control with menace get +1/+0 until end of turn. 2/2
Mob Rule 4RRSorcery Choose one — • Gain control of all creatures with power 4 or greater until end of turn. Untap those creatures. They gain haste until end of turn. • Gain control of all creatures with power 3 or less until end of turn. Untap those creatures. They gain haste until end of turn.
Encampment Keeper WCreature — Dog First strike {7}{W}, {T}, Sacrifice Encampment Keeper: Creatures you control get +2/+2 until end of turn. 1/1
Territorial Boar 1GCreature — Boar Whenever a creature with power 4 or greater enters the battlefield under your control, Territorial Boar gets +1/+1 and gains vigilance until end of turn. 2/2
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