At the beginning of each opponent's upkeep, exile all cards from your hand face down.
At the beginning of your upkeep, return all cards you own exiled with this artifact to your hand, then draw a card.
Mana cost
4
Mana value
4
Printings
From
$0.20
EDHREC rank
#21516
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
1 Feb 2006
Errata’d to make it clear that only the cards you own go into your hand, so if you somehow gain control of the Cloister, your opponent’s cards won’t go to your hand.