Experiment One (2X2) from Double Masters 2022, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Jack Wang
• Card Text:
  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.