Ceremonial Knife
From Innistrad: Crimson Vow set
Ceremonial Knife
Artifact — Equipment
Equipped creature gets +1/+0 and has "Whenever this creature deals combat damage, create a Blood token." (It's an artifact with "
,
, Discard a card, Sacrifice this token: Draw a card.")
Equip
(
: Attach to target creature you control. Equip only as a sorcery.)