I've played a few fangames that gave starters a third set of abilities and Iron Barbs Chesnaught was amazing in one of them, Mega Chesnaught with Stamina seems decent, but it has so many common weaknesses in Fire, Ice and Fairy, not to mention it gets deleted by Flying types, but on the other hand it switches freely against Dark, Ground, other Grass types, many Water types and even a few illusive Rock moves here and there. I'm trying to gauge how good it would be, especially given it's physical attack only got boosted by.....10 points....and it's worthless special attack got boosted by 20......
They did the same shit with Delphox by wasting 10 points in attack for no good reason when Delphox desperately needed those points put into special attack or at the very least defense.
That's how you know these leaks are legit, holy fuck Gamefreak are a bunch of filthy fucking retards, what's even more insulting is them locking these Megas behind a paid subscription AND a limited time ranked mode season.