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
Kaysa 3GGLegendary Creature — Elf Druid Green creatures you control get +1/+1. 2/3
Sibling Rivalry 3RSorcery Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")
Orcish Captain RCreature — Orc Warrior {1}: Flip a coin. If you win the flip, target Orc creature gets +2/+0 until end of turn. If you lose the flip, it gets -0/-2 until end of turn. 1/1
Charging Paladin 2WCreature — Human Knight Whenever Charging Paladin attacks, it gets +0/+3 until end of turn. 2/2
Might of the Nephilim 1GInstant Target creature gets +2/+2 until end of turn for each of its colors.
Human-Time Lord Meta-Crisis Phenomenon When you encounter Human-Time Lord Meta-Crisis, each player chooses one or two creatures they control. Each player creates a token that's a copy of the first creature they chose, except it isn't legendary. Then each player who chose a second creature puts a number of +1/+1 counters on the token they created equal to the power of the second creature they chose. (Then planeswalk away from this phenomenon.)
Skirk Alarmist 1RCreature — Human Wizard Haste {T}: Turn target face-down creature you control face up. At the beginning of the next end step, sacrifice it. 1/2
Historian's Wisdom 2GEnchantment — Aura Enchant artifact or creature When Historian's Wisdom enters the battlefield, if enchanted permanent is a creature with the greatest power among creatures on the battlefield, draw a card. As long as enchanted permanent is a creature, it gets +2/+1.
Thunderous Might 1REnchantment — Aura Enchant creature Whenever enchanted creature attacks, it gets +X/+0 until end of turn, where X is your devotion to red. (Each {R} in the mana costs of permanents you control counts toward your devotion to red.)
Coward 1RSorcery Target creature can't block this turn and becomes a Coward in addition to its other types until end of turn. Time travel.
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