Moon Eternal

All hounds you control gain +1/+1 and vigilance.
At the beginning of your upkeep, add a lunar
counter to Moon Eternal.
{1}, exile Moon Eternal: target creature you
control gains +X/+X where X is the number of
lunar counters on Moon Eternal until end of turn.
I've gazed at the moon. It's only unnerving when she
gazes back.