Because warrior is the most imba class with bm2 [with hack]?
Read my guide, if you notice that warrior bm2 has splash,
which can be extended with skill effect range, you'll see it.
Blader is good too, but not as good as warrior.
A really good tip are the leech rings, like force absorb..
4% life and mana absorb are for warrior and blader (and maybe some more) really insane.
It's near a *** mode if you use it right