>>35065897The way I see it Charizard X develops the fire theme of charizard: blue flames indicate a hotter fire, black skin represents burnt skin and its body is overflowing with fire that Charizard can't contain and escapes from its mouth.
Mega Charizard Y on the other hand represents the flying theme of charizard: Bigger wings, extra wings on its hands and a more streamlined design are the evidence for this.
Likewise Mega Mewtwo X represents physical prowess while Mega Mewtwo Y represents mental prowess.
Following this logic I would make Mega Venusaur Y expand on the poison theme of venusaur in contrast to the more plant themed Mega Venusaur X. Perhaps I would make it a sickly looking Venusaur with a dying flower and a cloud of poisonous spores that surrounds it all the time.
