Would it be crazy to have maximum bonuses (say +10 on Normal, +20 on Hardcore)?
Maybe for players who are Nightmare equipped and end up in a Normal run, there's something that can be done to compensate them the lack of use of their build?
+1 Treasure, +20 HP, boosts to hand out to the Normal players, a special spell or ability that's otherwise unavailable, a Green character card, a "mutation" like wings or turning back-bumper slides into flank attacks or being able to transfer their HP to other players, or fastball special the Barbarian, or something? Like a slotless "Wonder" power that depends on year, con, and adventure?
I came here to sing and collect tokens, and I'm alllll out of money.