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Experiment One | Creature | Human Ooze | Evolve (Whenever a creature you control enters, 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. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.) | Chase Stone
Gladecover Scout | Creature | Elf Scout | Hexproof (This creature can't be the target of spells or abilities your opponents control.) | Brian Valeza
Hero of Leina Tower | Creature | Human Warrior | Heroic — Whenever you cast a spell that targets Hero of Leina Tower, you may pay {X}. If you do, put X +1/+1 counters on Hero of Leina Tower. | Aaron Miller
Mistcutter Hydra | Creature | Hydra | This spell can't be countered.
Haste, protection from blue
Mistcutter Hydra enters with X +1/+1 counters on it. | Ryan Pancoast
