Does the 20% reduced targets resistances activate on any attack or only weapon damage skills ?
Only Weapon Damage.
Thanks ceno.
Thank sucks though. I’m making a caster and it would have been really good. Too many things are only activated by weapon damage 
Scourge of the Arcanist mastery, only one skill that has weapon damage in it yet has an entire IEE line most of who’s benefits only affect weapon damage. Not having WD% in your primary skill cuts you out of a lot of good stats/devotions/buffs. Yes it can be balanced around to an extent but to me its a mechanic that doesn’t add a whole lot to the game and is a net negative for player experience (e.g. makes gear upgrades not very exciting, only +skills give you meaningful damage increases, etc).