I'm pretty sure I know the answer to this, but Golurk's Devolution Punch applies the weakness and resistance of the evolved Pokemon, correct? For example, if I used it on an opponent's Hydreigon DRX which has no Resistance and devolve it into a Deino with a Psychic resistance, the attack still does 60 damage.
Golurk DRX
Golurk DRX