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 - $8.000
Lightly Played - $6.400
Moderately Played - $5.600
Heavily Played - $4.800
Damaged - $4.000
Near Mint Spanish - $8.000
Lightly Played Spanish - $6.400
Moderately Played Spanish - $5.600
Heavily Played Spanish - $4.800
Damaged Spanish - $4.000