Kusari-Gama 260 (Champions of Kamigawa)

Equipped creature has "{2}: This creature gets +1/+0 until end of turn." Whenever equipped creature deals damage to a blocking creature, this Equipment deals that much damage to each other creature defending player controls. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

NM - $11.00
LP - $8.80
MP - $6.60
HP - $4.40
DMG - $2.20