Really cool mon, it's a shame that it peaks ingame as soon as you evolve it, and then after that gets gradually less and less useful because Grass/Ground is really not that good once you get past resisting both Rock and Ground.
>Ground type with no Poison resist
>Grass type that doesn't resist Water or Grass itself
>4X Ice weak
>still vulnerable to Fire, Bug, and Flying
It's a shame Torterra will never be good. He deserved better.