Ceremonial Knife
Artifact — Equipment
Equipped creature gets +1/+0 and has "Whenever this creature deals combat damage, create a Blood token."
Equip 
Antonio José Manzanedo
Rulings
If an effect refers to a Blood token, it means any artifact token with the subtype Blood, even if it has gained other subtypes.
(wotc • 2025-01-24)
You can't sacrifice a Blood token to pay multiple costs.
(wotc • 2025-01-24)
Some triggered abilities trigger "whenever you sacrifice a Blood token." These abilities trigger regardless of why you sacrificed that Blood token.
(wotc • 2025-01-24)
Rulings
If an effect refers to a Blood token, it means any artifact token with the subtype Blood, even if it has gained other subtypes.
(wotc • 2025-01-24)
You can't sacrifice a Blood token to pay multiple costs.
(wotc • 2025-01-24)
Some triggered abilities trigger "whenever you sacrifice a Blood token." These abilities trigger regardless of why you sacrificed that Blood token.
(wotc • 2025-01-24)