Vitriya, the Frigid Hoard

Indestructible, Vigilance, Protection from White
If Vitriya, the Frigid Hoard isn't worshiped it
can't attack or block.
Whenever Vitriya, the Frigid Hoard attacks or
blocks, gain control of target permanent.
Worship - At the beginning of your upkeep,
control 3 permanents owned by your opponents.