Mega Gardevoir Sun

Synergy

Gardevoir-Mega's Pixilate turns Hyper Voice into a powerful Fairy spread move, and Ninetales provides sun via Drought to power the team's fire coverage. Corviknight sets Tailwind and provides physical bulk with Mirror Armor. Kommo-o is a durable wall that sets up Iron Defense and Body Press. Ursaluna with Guts and Flame Orb is the physical sweeper. Sinistcha provides Hospitality healing, Rage Powder redirection, and Trick Room as a backup speed control option.

Win Conditions

Establish sun with Ninetales, set Tailwind via Corviknight, then overwhelm with Gardevoir-Mega's Pixilate Hyper Voice and Ursaluna's Guts-boosted Facade. Sinistcha enables Trick Room as an alternate game plan.

Lead Options

Gardevoir-Mega + Ninetales, Gardevoir-Mega + Corviknight, Sinistcha + Ursaluna

Threats

Steel-type Pokémon that resist Fairy, opposing weather teams that overwrite sun, and hard physical attackers that threaten Gardevoir's frail Defense.