So part of me believes that when the creators make new heroes, they automatically know all the cards that might have some play with the newfound abilities. Another part of me thinks that every combo that seems like it ought to work but doesn't sit 100% okay with my gut tends to fail.
I digress. This isn't a big one -- if you commit leadership frodo to the quest, trigger his ability, ready a character, then, before resolving questing, use elevensies, do you get both threat reductions if you quest successfully? Could you also use hobbit pony to re-commit him and trigger his ability again, for a possible 3 threat reduction (for a slightly expensive 2 multi sphere cost?)