The only tank has been torterra though. Venasaur, and Meganium were both leech seeding, defense wielding, status inducing walls. I feel like they tried to break away from that with sceptile and then figured since that was a "success" then they wold try a tank grass. when that failed they tried to merge sceptile with meganium and got serperior who is my favorite grass starter. Now i think they realized that torterra being ground opened it to tons of weaknesses and i think they are going to try and "fix" the tank idea with chespin. probably giving him a good resisting type to go with grass *coughrockcough* and adding some more speed.See its something new lol. Ya maybe not just like Sceptile, but we have had to many grass tank pokemon in my mind. And I don't want Chespin to be that.