I love Serperior. Do you have any idea for a Mega evolution or regional form for Serperior? Maybe make him Grass/Poison
Well I’m not exactly sitting on one that I’ve been saving for a special occasion or anything like that, but let’s give it ago…
I suspect we’re not likely ever to see regional forms of starter Pokémon, but on the assumption that we might, well, I think there could be interesting ground for a Kalosian form of Serperior. Serperior is supposed to have a royalty aesthetic, and we know from interviews that elements of his design are based on French nobility and the symbol of the fleur-de-lis. A Kalosian Serperior might have the blue and gold colours of the Bourbon dynasty, some kind of crown-like head crest, maybe a more ornate tail… it might be interesting if this version of Serperior had a focus on physical attacks and particularly on blade-like moves like Night Slash and Sacred Sword. Typing could be Grass/Fighting, Grass/Steel, even Grass/Fairy, perhaps with a signature move to match (there’s nothing clearly wrong with Grass/Poison for a variant of Serperior, but we do have rather a lot of those already). Contrary might be replaced with something like Defiant or Justified that provides a situational attack bonus. And of course these Serperior would have been favoured partners of the Kalosian royalty in ancient times.
…and where else to start but with my very own starter Pokémon? Before the English versions of Black and White were released, Snivy was given the fan nickname “Smugleaf,” and you can see why. My gods, he looks pleased with himself, doesn’t he? Honestly, I think Smugleaf would have been a better name than Snivy as it fits with the impression of haughtiness that Nintendo seems to have been aiming for with this entire evolutionary line, but it was not to be. Ah well. It certainly works anyway, in my opinion (except that the name “Servine” is a little unfortunate – it makes me think “servile,” when he is anything but). All three of these Pokémon clearly think not only that they’re smarter than you, but also stronger, more important and infinitely more handsome. You will want to strangle them within about five minutes. 
Pokémaniacal 