Sweeping Attack

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) Whenever this creature attacks, you may have it deal 1 damage to each creature defending player controls.

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 (: Attach to target creature you control. Equip only as a sorcery.)