This Armarouge invests points in Sp. Atk and Speed and survives an opposing physical attack with Focus Sash, raising its Speed in the process. After surviving the hit, it sets Psychic Terrain and Block priority while pushing boosted Expanding Force is possible.

Alternative Move Options

Energy Ball broadens coverage

Destiny Bond is the main move slot that can be changed. In particular, Aura Sphere is covers Dark types resisting Psychic. Choose per team/meta.

Field-Deploying Ace Role

Psychic Terrain while its item and Ability cover the opening needed to set it, reversing the Speed order and letting it dominate by moving first.Field-boosted Expanding Force pressures — functions as ace; even bad matchups can trade 1-for-1 via Destiny Bond.

Threats

Weak to faster special attackers

Armarouge's Speed before ability boost isn't high, so Weak to faster special attacks not triggering Weak Armor. Vs. faster special attackers, switch out.

Trick Room on its own, Life Orb it attacks with power-boosted moves — a special attacker.With a Speed-lowering nature, it aims to act first under Trick Room build. Its Ability Flash Fire nullifies the opponent's Fire-type moves, letting it play advantageously.

Alternative Move Options

Aura Sphere or Wide Guard are also good options

Protect instead, Aura Sphere or Wide Guard are also recommended. Aura Sphere hits the weakness of Incineroar and Tyranitar, who resist both Fire- and Psychic-type moves. Also, unlike Protect, Wide Guard can also block spread moves aimed at your ally.

Doubles Trick Room Attacker Role

In Double Battles, Trick Roomit sets up and pushes forward together with slower allies. After manipulating Speed, Life Orb boosted Armor Cannon or Expanding Force to deal heavy damage to the opponent.

Good Partners

Indeedee with Psychic Surge

the ability Psychic Surge with サイコフィールド状態, which can set up Psychic Terrain, has good synergy with it. While Psychic Terrain is active, Expanding Force becomes a powerful spread move.

Threats

Pokémon that take Fire- and Psychic-type moves at half damage or less

It struggles against Pokémon that take Fire- and Psychic-type moves at half damage or less. In particular, Dark-type Pokémon are natural enemies, since they also exploit its weakness. Against Pokémon it struggles with, block their moves with Protect or by switching out, while countering with your ally's moves. Also, against Dark-type Pokémon, Aura Sphere to exploit its weakness as a counter.

With Sp.Atk/Spe EVs, Focus Sash or Endure to withstand a physical move and activate its Ability Weak Armor—this is a special-attacker Armarouge build.Taking physical hits boosts Speed 2 stages lets it outspeed fast attackers and pressure them with powerful special moves.

Alternative Move Options

Aura Sphere and Wide Guard are also recommended

Protect instead, Aura Sphere or Wide Guard are also recommended. Aura Sphere hits Incineroar and Tyranitar super effectively, both of which resist Fire- and Psychic-type moves. Unlike Protect, Wide Guard also blocks spread moves aimed at allies.

Role of the Doubles Weak Armor build

Self-targeted physical attacks turned into Speed boost; STAB from high Sp.Atkpressures opponent board as ace. Wide Guard against strong spread moves in doubles protects allies and creates advantage.

Good Partners

Indeedee with the Ability Psychic Surge

the ability Psychic Surge with サイコフィールド状態 pairs well with Indeedee, which can set it. While Psychic Terrain is active, Expanding Force becomes a powerful spread move.

Threats

Pokémon that resist both Fire- and Psychic-type moves

It struggles against Pokémon that resist both Fire- and Psychic-type moves. Dark types are especially dangerous because they also hit its weakness. Against their moves, use Focus Sash or Endure to survive the hit, then counterattack with Aura Sphere or an ally's move.