Seism is a ■■■■. In all cases, you will need AoE Attack ratio even playing a doppel. I have 11 AoE attack ratio, so if 6 medium mobs is inside my hitbox, I can catch all them. Pouncing is good but has a tiny hitbox aswell.
I took highlander because is the weakpoint in fencer(slash)
Sorry, barb will fill only some CC for your kit but you will still miss AoE AR. Aside from pouncing and warcry, rest can be discarded. Or do you think AoE from barb will overcome fencer skills?