Talents should be self explanatory.

Get good at disengaging with whirlwind and re-engaging/going after enemies with your Spear + seismic slam combo.

Wrath of the berserker and ignore pain as needed.

Damage is unreal, Survivability is pretty good throughout game and pretty great with ignore pain @ 20.

User WOTB liberally, 45 second cooldown means use it for backdooring, fighting mercs, pushing, team fights, ganks, etc

Used this build ~3500 mmr pretty successfully.

Works well with another tank like anub/muradin/etc