Quote Originally Posted by AzraelX View Post
duality + AE = golden
"combo bonuses and additional effects will only be applied once"

so you'd get 100 potency extra because AE without combo bonus is 100 potency

the wording on the skill is very suspect honestly. it won't work on trick or sneak attack since they are abilities, not weapon skills, so the best use of it with this tooltip would be for spinning edge.