Gustha's Scepter

{t}: Exile a card from your hand face down. You
may look at it for as long as it remains exiled.
{t}: Return a card you own exiled with Gustha's
Scepter to your hand.
When you lose control of Gustha's Scepter, put
all cards exiled with Gustha's Scepter into their
owner's graveyard.