When Wizened Arbiter enters the battlefield, you may reveal a white card you own from outside the game. If you do, exchange that card with a card in your hand.
Near Mint - £0.80
Lightly Played - £0.70
Moderately Played - £0.60
Heavily Played - £0.40
Damaged - £0.30
Near Mint Non English - £0.80
Lightly Played Non English - £0.70
Moderately Played Non English - £0.60
Heavily Played Non English - £0.40
Damaged Non English - £0.30