Trolls
First Post
I still prefer "takes double damage from bludgeoning" instead of "resists slashing and piercing". Makes you feel super awesome for having a different weapon ready, instead of useless for having the wrong weapon.
Cheers,
This, or at least something based on this sort of positive reinforcement.
And it doesn't necessarily need to just be damage multipliers. Perhaps skeletons hit with bludgeoning weapons are also (or only) slowed, immobilised, staggered, dazed or something like that. Weaknesses can be much more flavourful if they're more than just increasing or reducing damage.