As Ixidron enters the battlefield, turn all other nontoken creatures face down. (They're 2/2 creatures.) Ixidron's power and toughness are each equal to the number of face-down creatures on the battlefield.
Near Mint - £0.50
Lightly Played - £0.40
Moderately Played - £0.40
Heavily Played - £0.30
Damaged - £0.20
Near Mint Non English - £0.50
Lightly Played Non English - £0.40
Moderately Played Non English - £0.40
Heavily Played Non English - £0.30
Damaged Non English - £0.20