Torterra lv 51
Well, it can do 100 damage for 2 with sceptile. That is great and all, but how can you get that out? Phione? Phione will often be dead by t3, so you may only get torterra out and still need to search for sceptile. It isn't good to have a pokemon that can't do any damage unless you have a stage 2 out.
Also, fire will be HUGE with heatran lx. This will weaken torterra a lot. Not only does weakness hurt, but magmortar lx comboed with heatran lx can take the deck down instantly. Magmortar lx can snipe sceptile off the bench, and once sceptile is gone, the whole deck goes down with it.
Still, the payoff is amazing. And a certain chia pet-like lx that we get in november will make torterra hard to take down. So if you can get a good set up with it, go with torterra. Just remember, if we get any serious sniper pokemon, torterra's days are finished.
Now: 8/10
By november: 6.5/10