Ceva, Demonic Angel

Hexproof, Indestructible, Flying
Vera, Demonic Angel can't be countered.
Cera enters the battlefield with Ten Mercy counters. As long as Cera has a Mercy counter on her she cannot attack or block. Whenever a creature attacks you remove a Mercy counter.
"A paradoxical creature, but one that exists." -Sorin Markhov