Mewtwo Y is a Psychic-type Legendary Pokémon defined by extreme Special Attack, strong bulk, and flexible utility in competitive formats. Introduced in Generation VI, it remains a high-impact pick in Smogon tiers thanks to signature moves like Psychic, Focus Blast, Thunderbolt, and Shadow Ball, paired with the powerful Mega Launcher ability. This profile explains Mewtwo Y’s base stats, abilities, best item choices, and proven sets, focusing on evergreen concepts rather than short-lived events. Readers will understand how Mewtwo Y functions offensively and support roles, when to pivot in, and how it compares to other Psychic and Legendary threats in the current environment.
Key Stats and Role Overview
Mewtwo Y’s standout stats make it one of the most potent special attackers in the game. Its base 150 Special Attack and 130 Speed enable it to threaten nearly every tier after a single boost, while 90/90/100 defenses provide reliable survivability against neutral hits. As a Psychic-type, it carries a useful offensive and defensive toolkit, with wide access to status, coverage, and setup options. In Smogon’s OU and similar formats, Mewtwo Y is most commonly seen as a versatile pivot that can either wallbreak or function as a cleaner, supported by Mega Launcher for moves that consume Normal- and Fighting-type moves.
Mega Launcher Ability Mechanics
Mega Launcher grants Mewtwo Y a 1.5x power boost on aura and pulse moves, turning several of its attacks into major threats. This multiplier applies to moves such as Psychic, Psyshock, Aura Sphere, and Focus Blast, allowing them to break through common substitutes and bulkier targets. The ability also strengthens moves like Dark Pulse and other aura-based options, giving Mewtwo Y reliable coverage while preserving its STAB options. Understanding which moves benefit from Mega Launcher is essential for maximizing damage output and ensuring consistent pressure across different team archetypes.
Pulse and Aura Move Categories
Not all moves with “Psy” or “Dark” in their names qualify for Mega Launcher. Only moves explicitly defined as aura or pulse-type moves receive the boost. Moves such as Psychic, Psyshock, Psych Up, and Future Sight are aura-based, while Focus Blast and Dark Pulse are classified as pulse moves. Conversely, multi-attack variants like Tri Attack and other moves outside these categories do not benefit from the 1.5x multiplier. This distinction helps trainers identify which tools remain strong and which must be replaced when building around Mega Launcher.
| Move | Category | Powered by Mega Launcher | Base Power |
|---|---|---|---|
| Psychic | Special | Yes | 90 |
| Focus Blast | Special | Yes | 120 |
| Dark Pulse | Special | Yes | 80 |
| Psyshock | Physical | Yes | 80 |
| Tri Attack | Special | No | 80 |
Common Moveset Options
Mewtwo Y’s flexibility allows it to run a variety of movesets tailored to different stages of a match. Competitive players typically choose between fast, setup-oriented builds and slower, utility-focused variants. The following list highlights widely used moves that align with Mewtwo Y’s strengths and the strategic goals of its common sets.
- Psychic or Psyshock for reliable STAB with Mega Launcher
- Focus Blast to hit Steel and Rock types that resist Psychic
- Thunderbolt or Thunder for neutral coverage against Flying and Water
- Shadow Ball to threaten Ghost and Psychic switch-ins
- Calm Mind for setup sweeping potential
- Ice Beam or Freeze-Dry to handle Dragon, Grass, and Ground types
- Protect for stalling, scouting, and boosting with Calm Mind
- Fake Out or U-turn for pivot support and momentum in specific formats
Item and EV Choices
Optimizing Mewtwo Y’s performance depends on meaningful choices in items, abilities, and EV spreads. Life Orb and Choice Specs are the most common offensive items, each emphasizing different playstyles, while Assault Vest and screens-oriented supports focus on durability and team integration. EVs should align with whether you aim to outrun key threats, survive specific neutral hits, or preserve bulk for repeated switches.
| Item | Use Case | Key Benefit |
|---|---|---|
| Life Orb | Max damage | +30% power at the cost of 10% HP per move |
| Choice Specs | Wallbreaking | +50% Special Attack, restricts movepool to one move |
| Assault Vest | Bulk setup | +50% Special Defense, locks status and item usage |
| Leftovers | Sustain | Passive HP recovery each turn |
Competitive Tier History and Meta Relevance
Across Smogon generations, Mewtwo Y has frequently been ranked in high-tier positions, including OU, Uber, and Anything Goes depending on the format’s restrictions. Its presence is shaped by factors such as hazard prevalence, common Steel- and Dark-type support, and the availability of faster revenge killers. Historically, Mewtwo Y excels in balanced metas where it can threaten switch-ins and apply pressure across multiple roles. In hyper-offensive or heavily hazard-driven environments, its weaknesses to priority, faster attackers, and strong Dark- and Ghost-type checks can reduce its prominence.
Tier Placement Snapshot
While exact tier rankings shift with updates, Mewtwo Y has remained relevant in formats that permit significant special attacking pressure. In OU, it often appears on teams that need a flexible special nuke or a check to common defensive cores. Its usage typically spikes when no restrictive clauses are in place and when support Pokémon able to remove hazards or set screens are present on the team. Understanding these environmental factors helps explain why Mewtwo Y sees more play in some generations than others.
Team Integration and Matchup Guidance
Mewtwo Y functions best on teams that can preserve its switch opportunities and protect it from early disruption. Hazard control, entry hazard removal, and screens or setup support allow it to maintain presence late in games. Pairing Mewtwo Y with reliable pivots, hazard removers, and teammates that answer common Dark- and Ghost-type checks amplifies its overall effectiveness. Awareness of frequent counters—such as faster priority users, strong Dark-types, and specially defensive Walls—helps players decide when to bring Mewtwo Y in and when to rely on alternative threats.
Ideal Teammates and Common Counters
Support Pokémon that remove Stealth Rock, set Light Screen or Reflect, and provide reliable pivoting help Mewtwo Y reach cleaner or sweep mode. Offensive partners that can pressure common Dark- and Ghost-type answers create favorable 2-on-1 scenarios. Conversely, opponents often leverage priority moves, fast special attackers, and bulky Psychic- or Dark-types to punish Mewtwo Y when it is forced into unfavorable switches. Recognizing these dynamics allows teams to either shield Mewtwo Y or pressure opposing versions more effectively.