This spell costs X less to cast, where X is the total toughness of creatures you control.
Defender
2UU: Until end of turn, target creature you control gets +1/+0, gains "Whenever this creature deals combat damage to a player, draw cards equal to its toughness," and can attack as though it didn't have defender.
Near Mint - $5.20
Lightly Played - $4.70
Played - $3.70
Heavily Played - $3.10
Damaged - $2.60
Near Mint Non-English - $5.20
Lightly Played Non-English - $4.70
Played Non-English - $3.70
Heavily Played Non-English - $3.10
Damaged Non-English - $2.60
Foil Prices
Near Mint Foil - $8.70
Lightly Played Foil - $7.90
Played Foil - $6.10
Heavily Played Foil - $5.30
Damaged Foil - $4.40
Near Mint Foil Non-English - $8.70
Lightly Played Foil Non-English - $7.90
Played Foil Non-English - $6.10
Heavily Played Foil Non-English - $5.30
Damaged Foil Non-English - $4.40