
The best moveset for Starmie in the current competitive meta typically features the moves Protect, Liquidation, Aqua Jet, Zen Headbutt.
In the Pokémon Champions meta, Starmie can be countered by exploiting its weaknesses (bug 2x, dark 2x, electric 2x, ghost 2x, grass 2x) and using effective check/counter teams.
The best item for Starmie is typically Starminite, based on high-level tournament and ladder stats.