Woodworn Longbow

Archery 3 (This artifact enters the battlefield with three arrow counters on it.)
Equipped creature has "{t}: This creature deals X damage to any target, where X is the number of arrow counters on Woodworn Longbow. Then remove an arrow counter from Woodworn Longbow."
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)