Because damage remains marked on a creature until the cleanup step or an effect removes that damage, nonlethal damage dealt to creatures you control may become lethal if Mirari's Wake leaves the battlefield
Counters Experiment One 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 this creature: Regenerate it
UG: EXHAUST RAMP The exhaust mechanic is spread fairly evenly across blue, red, and green, and the amount of specific synergy makes me consider this to be the formats true three-color deck
It would be a very on point deck if "Call for Backup" meant tutoring up creatures that keep your creatures alive, but running a ton of tutors wouldn't really fit the "precon-esque" environment, such decks are too consistent and will just overrun (get it) other precon-esque decks
Instant Color tag templates(None) Plumb the Forbidden As an additional cost to cast this spell, you may sacrifice one or more creatures