Orange dice are spice. They behave just like normal dice but can also be used in trading.
Ah ok, thank you very much.
Nothing on their own (except be a dice in your inventory, giving you an extra damage dice). You add effects to them with relics.
and grey dice are plated, they only take one damage at a time but cant be healed by the one that heals on a blank. (however i think they can be rerolled into a higher number at events)