Moves that lower its own Sp. AtkLeaf Storm via the AbilityContrarySerperior wall-counter build that reverses via this and fights while raising Sp. Atk.Leftovers or Leech Seed uses skillfully to supplement bulk, Safely raises stats to aim for sweep while preventing opponent disruption — its composition.

Role of the Wall-Counter build

Leverages high Speed to act first, and walls Substitute and Taunt disrupts while Leaf Storm and the AbilityContrary's combo raises Sp. Atk as the main role.

Strong Against

Walls relying on status moves

This Serperior build, against walls' status moves and recovery moves, Substitute or Taunt disrupts while unilaterally Leaf Storm or Leech Seed can chip. With the Ability Contrary sufficiently raise Sp. Atk and break through.

Threats

Pokémon that hit U-turn from second

From going second, U-turn if used, hits Serperior's weakness while Substitute gets broken or Leech Seed gets cancelled, so can't fulfill role sufficiently. If seen in opponent's team, leave it to another Pokémon.

High-damage Pokémon

This Serperior build Without Sp. Atk boosts, damage is low and coverage narrow, so facing high-damage attackers directly is unfavorable becomes.Substitute safely raise Sp. Atk while using or switch to walls — work with creativity.

GlareDeploying both screens to support teammates, Contrary + Leaf Storm makes it an attacker too — dual-screen setup build.Mental HerbIt can block one disruption move and ensure reliable board control.

Dual Screens + Glare Role

Brought out as a lead, a role of setting screens and spreading paralysis so team aces can boost safely. Once support is done, it boosts Sp.Atk and joins cycles as a sub-ace.

Threats

Weak to Unaware and fast attackers

Serperior fights by boosting itself, so the ability that ignores stat changes Unaware is a threat. Serperior's bulk is also low, so fast attackers can OHKO it, so be careful.