Actually, I've already designed two Pokemon as counterparts to Heatran - Voltran and Frostran. Voltran is actually quite similar to Cyclohm, having amazing Speed, Special Attack, and Special Defense (but pitiful HP, Attack, and Defense,) while Frostran is just a tank, pure and simple (it's got good stats in everything but Speed.) More detail on both can be found in the main Create-A-CAP thread.