This combined with Favor of the Moon seems absolutely nuts. You only ever spend 1 offering and can get back a spell guaranteed every time, until you’ve used up all 3 of your Favor tokens.
The interesting thing is the wording here implies that you wouldn’t be putting the curses back into the token pool, you’d put them back into the bag after revealing them with SttD. Then FotM reads “When you would reveal a chaos token from the bag, exhaust [this]: Resolve a token sealed here instead, as if it were just revealed from the chaos bag.”
Since SttD is only “revealing” the curse token and it is not during a skill test, then the curse token does not trigger an additional draw, and goes back into the bag. So, if I’m understanding this right, it goes like this:
Action, Spend 1 offering: Parley. Choose your spell. Reaction, exhaust FotM: Resolve a sealed curse token instead of a random one from the bag. Return the spell to your hand. Put the formerly-sealed curse token into the bag. Gain 1 resource.