>>16251595>Mega Eeveelution The only pokemon out of entire family that would work well with the Mega concept is Eevee itself. Give it a bigger boost, quirky captain-planet-like ability and voilia! Eeveelution based around the premise of Mega gimmick.
As for other Megas...
I'd love a Mega Gallade, but I can't design BST spread/abilities for shit. I'd love such Mega to fit within enhanced metagame framework within reasonable range without completely fucking over other choices - as opposed to making it high-OU/insta-Ubers kind-of-broken.