Im tired of enrage teams!

Paladins, Rogues and Shamans always doing the same enrage strats and killing in turns 4th/5th/6th

Blizz do something with low cost minion cards than can be buffed with other low cost cards.-

Which low cost cards would you like to see improved?

There are many that already synergies well with each other and I would like to know which ones you feel need to improve on this.