you can also try this build if you go for 2-handed weapon and using raid gear, CLICK, but careful if you use other gear like tamarin tigers you will have lots of problems controlling the aggro pull. for perks use WW and upheaval and you will be fine. for combo rotation, barb is easy but also depends on the fights, don't stick to the same always and everywhere, for example you can start a figth with wreck armor + upheavel + wreck armor +++ and so on until wreck armors are all on CD, that way you debuff target with torment to 4 stacks (at least) and increase you reaver stacks faster, the rest comes on its own