The Chaos Keeper enters with a sealed Magic booster pack of your choice under it. (You provide a new pack each time.) Whenever The Chaos Keeper deals combat damage to a player, reveal its cards and put one of them into your hand. (Don't open the booster pack until the first time this ability reolves.)
NM-Mint - $96.30
Lightly Played - $91.50
Moderately Played - $86.70
Heavily Played - $77.00
Damaged - $62.60
NM-Mint Non English - $96.30
Lightly Played Non English - $91.50
Moderately Played Non English - $86.70
Heavily Played Non English - $77.00
Damaged Non English - $62.60