Ark of the Covenant

Whenever Ark of the Covenant {t}
Roll a D20, if the result is 1-10, exile target permanent you control, return it to the battlefield under your control during your next upkeep. If the result is 11-20, exile target permanent opponent controls, they may play the exiled permanent at any time by paying {3} in addition to it's other costs, otherwise it returns to the battlefield under your control during your next upkeep.