Duplicity
{3}{U}{U}
Enchantment
When ~this~ enters, exile the top five cards of your library face down.
At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with ~this~ into your hand.
At the beginning of your end step, discard a card.
When you lose control of ~this~, put all cards exiled with ~this~ into their owner's graveyard.
Moonring Mirror
{5}
Artifact
Whenever you draw a card, exile the top card of your library face down.
At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with ~this~ into your hand.