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 - $12.300
Lightly Played - $9.800
Moderately Played - $8.600
Heavily Played - $7.400
Damaged - $6.200
Near Mint Spanish - $12.300
Lightly Played Spanish - $9.800
Moderately Played Spanish - $8.600
Heavily Played Spanish - $7.400
Damaged Spanish - $6.200