
The best moveset for Chesnaught in the current competitive meta typically features the moves Spiky Shield, Body Press, Wood Hammer, Iron Defense.
In the Pokémon Champions meta, Chesnaught can be countered by exploiting its weaknesses (flying 4x, fairy 2x, fire 2x, ice 2x, poison 2x, psychic 2x) and using effective check/counter teams.
The best item for Chesnaught is typically Chesnaughtite, based on high-level tournament and ladder stats.