In my game the party is currently on the search for the bones of St. Andrel. They failed to get the bones themselves from the coffin maker but the Baron was able to get them and give them to the party. The party however has decided to work with Lady Watcher against the Baron. As such she also said she would help the player find the bones. I want her to give them a second skeleton that would essentially do the opposite of the actual bones instead of keeping undead out I want it to work as a one time use reawaken all the bodies in the graveyard bomb/spell.

My question is do you think that if I said the real bones had aburation magic attached to them but the fake ones have necrotic give it away to my players to easily?