You've been playing this one lately, right? Have you found it to be T6 capable or where does it stop?
Always thought it looked kinda interesting.
Just for the sake of this post I am going to stick with your current setup and ignore the endgame directions you could go. So that said, first thing I want to say is you should be looking for a new weapon. Schaefers honestly isn't that great compared to other lightning proc weapons (SoH/TF and Odyn are a hard combo to beat) but also if you plan on sticking with Seismic Slam, Fury of the Vanished Peak is a usable weapon now and makes SS a bit better. Pretty much all your gear needs work (especially your ammy and rings) but those things mostly come with time. That said though, I wouldn't actually gamble a new weapon if I were you, not until you upgraded some of your armor because it's way easier to do. Just something to keep in mind.
For your skills you should swap out your rune on battle rage to bloodshed. It's going to give you way more damage than the extra 5% from your current rune with the current damaging skills you are using, by a pretty long shot. You should consider changing Furious Charge as well. You already have solid aoe damage from SS so charge shouldn't be offering a lot outside of minor crowd control. I'd either switch the skill out entirely OR switch the rune over to Stamina. With Stamina you can spend way less time using bash in large groups of enemies and more time spamming SS. Merciless Assault is a fantastic rune as well, even if you aren't physical based, but you shouldn't need to use it with SS in your build.
Otherwise your build is pretty solid for farming the gear needed for higher difficulty stuff if you want to do it.
