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{1} ({1}: Attach to target creature you control. Equip only as a sorcery.)
Printings & Conditions (1)
Adventures in the Forgotten Realms (AFR)(Adventures in the Forgotten Realms)#250Common