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 - $20.30
Lightly Played - $18.30
Moderately Played - $16.20
Heavily Played - $14.20
Damaged - $10.20
NM-Mint Non English - $20.30
Lightly Played Non English - $18.30
Moderately Played Non English - $16.20
Heavily Played Non English - $14.20
Damaged Non English - $10.20