Charizard would have to see a new forme to become part dragon type.
But then every starter, or at least Blastoise and Venusaur, would have to get new formes as well. --- I don't care what you say, Generation II sucks. That's just my opinion, no matter how true it may be.
Then decline as people realize he's still not that good due to lackluster stats and no moves that really make him stand out. --- "Religion keeps pressing B when we try to evolve." - pirategeorge" [Pokemon White FC: 3568 1441 4376 (Pentao)]