Another thought is trying out 3v3. 3x BM hunters blow shit up!

Personally, I enjoy 3v3 more than my quad shamans /healer doin 5v5. I run x3 hunter,x3 warlock team and have done some 3v3 with just my shamans also. The number one thing to do is play as many games as you can. In this case practice is indeed perfect.