How to Beat Mewtwo in Pokémon Quest Chamber of Legends

To beat Mewtwo in the Chamber of Legends, bring two durable frontline tanks to draw aggro, use a mobile ranged attacker for steady damage, and manually trigger the Scatter command whenever Mewtwo winds up its charged psychic blast. Mewtwo deals massive area-of-effect (AoE) damage that can wipe an unprepared squad in a single hit, making manual positioning and sustain far more critical than raw Team Might.

Recommended Team Setup

A balanced squad composed of Onix, Rhydon, and Charizard gives you the durability and spacing needed to survive Mewtwo's attack rotations.

Pokémon	Primary Role	Recommended Moves	Tactical Function
Onix	Frontline Tank / Harasser	Rock Throw, Harden, Flash Cannon	Absorbs straight-line attacks with its wide hitbox and disrupts Mewtwo.
Rhydon	Bruiser / Melee Damage	Megahorn, Dig, Earthquake	Delivers burst damage while staying planted close to the boss.
Charizard	Ranged Attacker	Fire Blast, Flamethrower	Deals sustained fire damage from outside Mewtwo's close-range blast radius.

Two Frontline Tanks: Running Onix alongside Rhydon splits incoming melee pressure and keeps Mewtwo facing away from your ranged attacker. Onix provides a large defensive body, while Rhydon chips down Mewtwo's large health pool with heavy-hitting physical moves.
One Dedicated Ranged Attacker: Charizard stays back, attacking from safety. Lingering ground hazards from moves like Fire Blast continue to tick down Mewtwo's health even when it pauses between phases or teleports.

Mewtwo Attack Telegraphs and Scatter Timing

Auto-battle should be turned off for this encounter. Surviving Mewtwo requires watching its animations and reacting with the manual Scatter whistle.

Teleport and Wave Attacks: During the fight's opening pace, Mewtwo regularly teleports and emits local psychic shockwaves. These push melee fighters backward and deal moderate knockback. Let your frontline absorb this initial pressure; do not waste a retreat command here.
Charged Psychic Orb: Mewtwo floats upward and gathers a massive, glowing energy sphere above its head. This is its lethal attack. Caught units will usually be knocked out instantly.
Bouncing Sphere Spread: Mewtwo periodically casts multi-projectile energy spheres that ricochet off the arena's boundary walls, penalizing units trapped in corners.

How to Dodge with the Scatter Whistle

Hit the Scatter button the moment Mewtwo floats into the air or begins channeling the overhead psychic sphere.
Your Pokémon will break their attack animations and sprint toward the outer perimeter of the arena, clearing the explosion zone before the orb detonates.
Allow your squad to re-engage automatically once the blast clears.
Do not spam the Scatter whistle arbitrarily. It carries a cooldown, and activating it too early leaves your team unable to dodge Mewtwo's actual lethal attacks.

Power Stone and Move Stone Priorities

Defensive sustain is necessary to prevent Mewtwo's chip damage from whittling down your team over a drawn-out fight.

Hit Healing (5% to 10%): Prioritize Power Stones with Hit Healing across every member of your roster. Multi-hit attacks such as Charizard's Fire Blast or Onix's Rock Throw will restore large amounts of health on contact, allowing your tanks to recover without relying on item drops.
Broad Stones: Attach Broad Stones to ranged abilities like Fire Blast to widen the damage area, ensuring ticks connect even if Mewtwo shifts position.
Wait Less Stones: Equip these on defensive buffering moves or primary burst attacks to reduce skill downtime.
Whack-Whack Stones: Slot these onto Rhydon to deliver repeated strikes whenever Mewtwo is briefly staggered after a major attack.