Despoiler

Mutate {2}{b/g} (You may play this card for its Mutate
cost, and when you do, place it on over or under a
Creature card. The card on top has the abilities and effects of the card underneath.)
During your turn, you may pay {p/b}{p/b} to target a
Being or Creature card. Choose an effect:
• Gain control of the targeted card until the end of the
turn.
• The targeted card becomes a Sithspawn
Mutant card and gains Feral and Decayed.