effective digestion - fortitude suggestion

Effective digestion
Action modifier / combat card
for: action modifier only usable after a successful hunt action. Put this card on this vampire, you can burn this card during your untap to give this vampire a blood from the bloodbank. A vampire can have only one effective digestion.
FOR: as above but you can play this card if this vampire gains one or more blood during a combat.

source: freely inspired by an advantage which allowed to get a third blood for each 2 bloods drained from whichever source...