I stand corrected. But I still think it's a non damaging move. We didn't hear Kirlia getting hurt unlike the other attacks, and the fact Kirlia looks like it's getting damaged is probably due to the game isn't finished.
But Grass/Rock Chespin isn't too bad as long as it's the final evo. Remember, Torterra could get SE hits on Infernape and Empoleon.
And does there have to be balance?
I think Chari was Fire/Flying due to the great imbalance it would cause. Same with Serp.
And I hate the fact Samu wasn't Water/Fighting.
I don't see Chespin learning Rollout=Rock-Type though. Shaymin's Land Forme could earn it too, right? That's another Grass Hedgehog.
Samurott should of been Water and fighting and Sceptile Grass and dragon. Especially considering he's the only pure type hoenn starter