Cryptoplasm - Mirrodin Besieged #23

Cryptoplasm

Set: Mirrodin Besieged (MBS)
Collector Number: 23
Type: Creature — Shapeshifter
Rarity: Rare
Mana Value: 3.0

At the beginning of your upkeep, you may have this creature become a copy of another target creature, except it has this ability.