Pugnale di Riserva (Spare Dagger) (it)
Artifact - Equipment
(CMC 1)
Equipped creature gets +1/+0 and has "Whenever this creature attacks, you may sacrifice Spare Dagger. When you do, this creature deals 1 damage to any target."
Equip (: Attach to target creature you control. Equip only as a sorcery.)