
The best moveset for Gardevoir in the current competitive meta typically features the moves Protect, Hyper Voice, Trick Room, Psychic.
In the Pokémon Champions meta, Gardevoir can be countered by exploiting its weaknesses (ghost 2x, poison 2x, steel 2x) and using effective check/counter teams.
The best item for Gardevoir is typically Gardevoirite, based on high-level tournament and ladder stats.