>>19903350Ash's Charizard is already pretty damn powerful. It survived a round against the Unown Entei, who should be leagues above Mega Zard X, and it has grown stronger ever since.
Also, the strength of Allan's Charizard outside of its mega form is unknown. However, I doubt it's on par with Ash's Charizard.
>>19903354> Mega Pikachu>Implying that Pikachu won't be Ash's Primal Pokemon.