Base 109 SpA and 84 Atk are really unimpressive, but thankfully Charizard won't have to worry about that since it'll be Mega evolving as soon as it comes in! Charizard's bulk isn't all that great since it doesn't have the defense boosts of its Mega forms, so if you can't come in on a resisted (or otherwise weak) attack, you'll have a harder time getting in safely to Mega evolve. You'll absolutely want to keep Stealth Rock off the field so that Charizard can come in and Mega evolve safely. A 4x Stealth Rock weakness is an obvious eyesore, the single greatest downside of Fire / Flying typing. +Did I mention that it has two great Mega forms? +As long as you can avoid Stealth Rock, Charizard has 6 handy resistances and a Ground immunity, which will help it come in on various opponents to Mega evolve safely. It ensures that neither of Charizard's Mega forms will have to be slower for that initial turn like some other Mega Pokemon. +Base 100 Speed is a pretty good place to be at. This gives both of its Mega forms a good deal of versatility in the viable sets they can run. +Charizard's movepool is pretty diverse with many boosting, coverage, and support moves.
+Charizard has two excellent Mega forms, one of which you should be using any time you use Charizard. He was finally ready to shed his old shell and begin anew as the ruthless powerhouse that he was born to be.
No longer would he be cast aside by competitive players and dismissed as nothing more than a fanboy favorite. With a sharp-toothed smile, he exits his cave and flies off into the night with a new wind underneath his wings. In the other hand lie a silver and blue stone with the power to transform Charizard into a fierce physical attacker, complete with the legendary Dragon typing that he had always dreamed of from his early days in the Kanto region. In one hand lie an orange stone capable of boosting Charizard's natural talents as a special attacker to incredible heights, even allowing him to call forth the Sun itself to assist in his wrath. He had finally crafted the perfect weapons, two powerful Mega Stones that would increase his power to unprecedented levels. Within the chambers of this cavern stands the mighty Charizard, rising from his workbench. In a dark valley, a plume of smoke can be seen rising from the mouth of a large cave. It is said that Charizard's fire burns hotter if it has experienced harsh battles. If it becomes furious, the flame at the tip of its tail flares up in a light blue shade. It blows out fire at very high temperatures. Its wings can carry this Pokémon close to an altitude of 4,600 feet. When expelling a blast of superhot fire, the red flame at the tip of its tail burns more intensely.