Life OrbJoin competitive metagame discussions, recommended builds, ideal partners, and counters for Entei on the MetaVGC forum.
The best moveset for Entei in the current competitive meta typically features the moves its most common attacks.
In the Pokémon Champions meta, Entei can be countered by exploiting its weaknesses (ground 2x, rock 2x, water 2x) and using effective check/counter teams.
The best item for Entei is typically Life Orb, based on high-level tournament and ladder stats.
