Sword of Kaldra 251 (Mirrodin)

Equipped creature gets +5/+5. Whenever equipped creature deals damage to a creature, exile that creature. (Exile it only if it's still on the battlefield.) Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

NM - $40.40
LP - $32.30
MP - $24.30
HP - $16.20
DMG - $8.10