You and target player exchange control of the creature you each control with the highest converted mana cost. Then exchange control of artifacts the same way. If two or more permanents a player controls are tied for highest cost, their controller chooses one of them.
Near Mint - $9.900
Lightly Played - $8.000
Moderately Played - $7.000
Heavily Played - $6.000
Damaged - $5.000
Near Mint Spanish - $9.900
Lightly Played Spanish - $8.000
Moderately Played Spanish - $7.000
Heavily Played Spanish - $6.000
Damaged Spanish - $5.000