Mega Gengar

Mega Gengar is the team's win condition closer, combining Shadow Tag with Perish Song to create an inescapable three-turn countdown for any opponent who cannot Ghost-type switch out. Max HP investment with split Defense and Special Defense SP makes it surprisingly bulky, letting it survive long enough to set the trap rather than acting as a frail attacker. Modest nature with a token Special Attack SP preserves Shadow Ball as a damage threat. Disable is a critical disruption tool that locks out an opponent's best move after Incineroar fakes them out. This slot is intentionally brought last, entering only when the opponent has exhausted their swap options and Perish Song closes the game.