Talk:Piercing and Resistance/@comment-24259925-20150107164814/@comment-3241231-20150108014323

It's complicated, but the short answer is "It should help" for pvp.

Hitting an opponent's weakness (Fire offense vs. Fire weakness) should give a bonus, and hitting an opponent without anything should also help, while hitting an opponent that has the corresponding resistance (Fire offense vs. Fire Defense) should hurt.

Players haven't confirmed exactly how the system works, but yes, it should do something in PvP.