Spontaneous Mutation {U}

Enchantment — Aura

Flash (You may cast this spell any time you could cast an instant.)

Enchant creature

Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.

Illustrated by Christopher Moeller

Standard
Frontier
Modern
Pauper
Legacy
Penny
Vintage
Duel Cmdr.
Commander
Notes and Rules Information for Spontaneous Mutation:
  • The value of X will constantly update as the number of cards in your graveyard changes. (2016-07-13)