hrm, off hand for dark element, there’s obsidian for weapons, necromancer for class… and nothing else? It seems bishop could count for debuff, but fire has fire essence for weapons, dragon warrior and pyromancer for classes and similar modifiers.
Dark thus far seems to be resisted somewhat less compared to fire though.
Unsure what other dark damage modifiers there would be to make it comparable.
**this is in context of an no limits factor game, with limits light is probably the best by a large margin off hand.