Blessing cards can be added to an attack modifier decks through various effects (like donating to the sanctuary or becoming blessed).
A figure may also be BLESSED (positive condition). This causes a blessing to be shuffled into their attack modifier deck.
Note: Since monsters share the same attack modifier deck, one monster may be blessed, but another monster may draw the blessing card on their attack. This is still legal and does double their attack.
If a BLESSING card is drawn, it will double the damage of the attack. Then it should be removed from the attack modifier deck instead of being placed into the discard.
Unused blessing cards are always removed at the end of a scenario.