Experiment One
8c47db9a-65f3-4ccd-a21b-93de4c8d08fe
$1.29 CND
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.