Ersansyr Siren

Mutate {2}{u/b} (You may play this card for its Mutate
cost, and when you do, place it on over or under a
Being card. The card on top has the abilities and effects
of the card underneath.)
Traverse, Force Scream {t}{u/b}{u/b}
Dominate Mind {t}{3}{u} (Target a Being or
Creature card on the field and take control of it permanently. You may cast its abilities using any color energy.)