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 - $3.70
Lightly Played - $3.30
Played - $2.60
Heavily Played - $2.20
Damaged - $1.90
Near Mint Non-English - $3.70
Lightly Played Non-English - $3.30
Played Non-English - $2.60
Heavily Played Non-English - $2.20
Damaged Non-English - $1.90
Foil Prices
Near Mint Foil - $5.80
Lightly Played Foil - $5.20
Played Foil - $4.00
Heavily Played Foil - $3.50
Damaged Foil - $2.90
Near Mint Foil Non-English - $5.80
Lightly Played Foil Non-English - $5.20
Played Foil Non-English - $4.00
Heavily Played Foil Non-English - $3.50
Damaged Foil Non-English - $2.90