Ceremonial Knife (VOW) from Innistrad: Crimson Vow, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Antonio José Manzanedo
• Card Text:
  Equipped creature gets +1/+0 and has "Whenever this creature deals combat damage, create a Blood token." (It's an artifact with "1, T, Discard a card, Sacrifice this artifact: Draw a card.")
  Equip 2 (2: Attach to target creature you control. Equip only as a sorcery.)