
Flash
Enchant creature
Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.
Spontaneous Mutation has 4 printings, first in Eldritch Moon (2016). EDHREC ranks it #20,913 among Commander cards. It appears most in Wasp, Shrinking Savior decks (25 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.