I kind of hate Durant, a lot. It is one of those Pokemon that I am completely and utterly incapable of using, as every single one of my attacks miss, a consequence that none of my opponents seem troubled by. If I had to pick a single Pokemon that restricted teambuilding, I would have to choose Durant (at least for me, personally). I find it that way because the sheer power and versatility of Durant's Life Orb set of X-Scissor / Iron Head / Rock Slide / Superpower can basically demolish any offensive switch-in imaginable. Besides Pokemon such as Qwilfish and Poliwrath, I honestly can't figure out a Pokemon that bests Durant's fiery wrath (Emboar is pretty cool though). It's a desperately fast bugger, and the fact that all priority in RU is physical really lets Durant shine. When Durant lands its attacks, it can basically outmuscle and dismantle any team in RU, in my opinion. That being said, I don't find it broken or unmanageable. I just find it difficult and slightly restricting. Before, you could get away with running slow teams--I feel as if Durant requires you to run faster things to check it as, once again excluding Qwilfish and Poliwrath...everything else is basically OHKOed.
Damn good Pokemon when Hustle isn't a dick.