Mega Charizard Y

Mega Charizard-Y triggers Drought on mega evolution, enabling instant Solar Beam and boosting Weather Ball to a Fire-type spread move. Modest nature with near-maxed Special Attack makes Heat Wave one of the most punishing spread moves in the format. The Def investment with some Speed allows Charizard-Y to survive physical priority hits and outspeed key threats without committing to full glass cannon. Solar Beam one-shots Water types that would otherwise wall this team. As the second mega, it provides a complementary win condition when Mega Garchomp faces unfavorable matchups.