I'd recommend dual claws as far as weapons go for the armor shred + armor bonus it gives you.
For stats, you want to go 1str/2dex/2vita until you have close to 100 strength (strictly for equipping gear), then I would recommend 2dex/3 vita (if you want to alternate 2d/3v, 3d/2v every other level that works too).
Skills, invest in shadow burst (you will keep this at 5 points max) and cold steel mastery (this will be maxed) first. Get stormclaw when available and also start pumpng blood hunger for additional survivability.
As soon as you can, start adding points into armor shred.
Raze is going to be your single target boss killer, though it's not necessary to pump this early, others are better you can leave it at 1 for a long time. Battle rage is another skill you will get.
Skills to eventually max:
Blood Hunger
Raze
Battle Rage
Armor Shred
Cold Steel Mastery
10 points:
Executioner
5 points:
Stormclaw
Shadow Burst
This is a pretty strong zerker build. For clearing trash you basically just auto attack extremely fast while keeping passives up (much like a d3 monk), dashing around with shadow burst for survivability and utility.
On bosses you will simply raze them down. Obviously battle rage should be used in large packs.