Any other damage spoils it. Stuff like spammer, spank, actives, employee powers, anything that isn't explicit on its damage type, or stuff that changes damage types.

引用自 Douchebag Extraordinaire：

Any other damage spoils it. Stuff like spammer, spank, actives, employee powers, anything that isn't explicit on its damage type, or stuff that changes damage types.

Does that also count for rocks that increase a damage type, despite not having any structure that deals that damage type?
Just tried a Holy run with Unknown and had only Holy structures. yet the end screen showed a bit of Unholy damage, but I'm certain the only Unholy items I've used were the aforementioned rocks.