When a player rolls a Divine Favour, it really MEANS something. It’s a Super Advantage and a Success in one. It’ the perfect “nothing but net” feeling. How you use a Divine Favour is up to the player. With a Divine Favour, you ask/create advantages that would normally be too much.
While it’s not in Summit of Kings, in the full Swordsfall RPG their are “supermoves” for each profession that require a Divine Favour. In Summit of Kings though it should be used to play up the Jalen’s rap. It’s the moment when a star is born.