Corvo, Guard Betrayed

Menace Deathtouch
Outsiders mark - when Corvo, Guard Betrayed
deals combat damage to a player, choose one.
activate only once each turn.
Blink - Exile target creature, return it to the battlefield at the next endstep.
Warp - Untap target creature, there is an
additional combat phase after this one.
Possess - Corvo, Guard Betrayed becomes a copy
of target creature until end of turn.