MTG Single

Experiment One [Mystery Booster]

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Set: Mystery Booster
Type: Creature — Human Ooze
Rarity: Uncommon
Cost: {G}
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from Experiment One: Regenerate Experiment One.