Choice Scarf reinforces Speed, and with the Ability Adaptability Basculegion (Male) attacker build that presses high-power physical moves that get boosted. With a move whose power scales with fallen allies, Last Respects is equipped, and Sweeper that enters in the late game to sweep the opponent's team in one go functions as.

Role of the Scarf Attacker build

In the early game, Flip Turn for pivot moves and Wave Crash pressures cycles with its high damage. When allies are defeated, Last Respects — in the late game when its power has risen, Finisher that leverages Scarf Speed to aim for a sweep from above takes on the role.

Threats

Struggles against Pokémon that Last Respects can't finish off

This Basculegion (Male), with the late-game power-boosted Last Respects aims for a sweep, so type matchups halved or worse Struggles against Dark- and Normal-type Pokémon, etc.. Also, since Pokémon with priority moves can KO it from above, be careful.

Focus Sashsecuring action guarantee, Agilityboost Speed with it to sweep as an ace.Adaptability High-power STAB and priority let it force a board where it outspeeds — possible.

Alternative Move Options

Wave Crash breaks Sash

Wave Crash has high power but recoil makes it Focus Sashpoor with it.Liquidation has less power but no recoil. Try if Wave Crash feels awkward.

Sash Sweeper Role

Focus Sashwith it as a shield, Agilityset up, sweep with high-power physical moves. Late-game revenge-kill brought out, max-power Last Respects sweeps as a sweeper.

Threats

Weak to action-guarantee holders

Pokémon surviving Last Respects via typing/Sash/abilities stop it.Stealth RockSet hazards to break Sashes, or pick face-off Pokémon to chip them.

Focus Sash secures action, and Adaptability doubles STAB power for face-off attacking. Sash covers bulk/speed concerns for reliable damage.

Sash CS Attacker Role

Wide coverage including Ice Beam hits weaknesses, and vs. weakened foes Aqua Jet pins from above — its specialty. Lead chip role or sweep-stopper, broadly active.

Threats

Pokémon halving main weapons

Basculegion (F) struggles vs. Pokémon halving Water/Dark moves boosted by Adaptability. Basculegion (F)'s subweapon power is low, so cover with allies.

With Atk/Spe EVs, Choice ScarfBasculegion (Male) physical attacker build that overwhelms from above by holding Adaptabilitycenters around STAB moves boosted by Sweeps opponents with Last Respects, whose power grows as more allies faint continues.

Role of the Doubles-oriented Scarf Adaptability build

Plays the ace role of pressuring the opponent and creating advantageous situations through high Attack and Speed superiority. In the early game, Flip Turn switches to set up the situation, and late game Dominates by spamming powerful signature moves from Choice Scarf's increased Speed — viable playstyle.

Threats

Struggles against Dark-type Pokémon

Dark-type is a weakness, and Last Respects resist them at half, making them unfavorable matchups. In particular, Sucker Punch Pokémon that strike first with priority and dual-type Pokémon that also resist Water moves are natural enemies. Include Pokémon favorable against Dark-types in the party.

Ability Swift Swim boosts Speed, and Focus Sashaction guarantee, attacks from above under rainphysical attacker. Max Atk/Spe enhances KO potential.

Alternative Move Options

Wave Crash for higher power

LiquidationThis slot can use higher-power Wave Crashas an option. However, recoil damage self-cancels Focus Sash — note it.

Doubles Rain Ace Role

In rain, Speed rises, Last Respects scales with fallen alliesand STAB Liquidationsweep opponents as an ace.ProtectWith it for ally coordination, chip opponents and Aqua Jetfinish reliably with it.

Threats

Weak to weather-changers and priority users

Built around rain, so weather changes hamper it. Mega Froslass and Alolan Ninetales hit its weakness from above. Also, abilities Scrappy causing Fake Out → Sucker Punch+ Pin combos like Mega Kangaskhan are also threats.