Circus Baby, Deadly Pretender

Defender, Deathtouch

{t}: Target player gains control of Circus Baby. Activate this ability only as a sorcery.

Whenever Circus Baby blocks a creature, its controller sacrifices a creature or planeswalker they control other than Circus Baby. Circus Baby returns to its owner's hand.

"Do you know what it's like, what it's like to pretend"