@ MrMeches
I didn't intend to bash anyone, I just don't want you to play uneffective cards. A discussion board is there to tell your opinion, and this is mine about Heatran. Maybe my kind of expression and the last sentence were a bit harsh, but therefore I put a smiley behind it. =)
But now back to the topic, why do you need Heatran to save energy if you can recover it with Super Connectivity? Even Electivire SW is easier to build up and helps more.
Of course Heatran can be useful in some situations. I could play Potion, this is also very useful in some situations. But you have to look what's better for your deck, since you have only 60 deck slots, 3-5 bench slots and limited setup capacities. And if you could have things like Palkia Lv.X, Electivire, 1-0-1 Dusknoir or other stuff with similar efforts, why choose Heatran? Magnezone doesn't have energy problems with the new one from Stormfront. The facts that you can switch around your energy and attach up to 2 each turn are enough, you don't need to save energy, but rather add some additional abilities to your deck.