This is a special attacker build of Mega Charizard Y with heavy EV investment in HP and Def. Thanks to the Def raised through EVs, it can endure the opponent's attacks in many situations and strike back, or Roost — a composition capable of grinding it out with it.

EV Allocation Intent

Alternative Move Options

Boost anti-physical performance with Will-O-Wisp

Effective against physical Pokémon, Will-O-Wisp is also recommended. With its high single-hit power, Overheat is strong too, so consider which one fits your team.

Flamethrower as an alternative to Weather Ball

にほんばれ状態, then Flamethrower has higher power than Weather Ball is also recommended. Since Weather Ball can no longer be used as a Fire move when the weather changes, choose between it and Flamethrower.

Role of the Roost Special Attacker

• Dominate with powerful Fire moves and complementary Grass moves
• Fight tenaciously with defensive EVs and Roost

Mega-evolves to rewrite weather, pressing boosted STAB and coverage Solar Beam to keep pressuring the opponent is its main role. With EVs heavily invested in bulk and Roost for recovery, maintaining offensive-defensive balance and favorable boards — its role.

Favorable Matchups

Advantageous in trades against low-bulk attackers

In trades against low-bulk attackers, you have the advantage. After enduring the opponent's attack with its high bulk, it can deal a fatal blow with a powerful Fire move.

Weak to Stealth Rock

Mega Charizard Y as Fire/Flying Stealth Rock takes 4× damage from it, losing 1/2 max HP on switch-in.Stealth Rock is often set early — bring a counter Pokémon.

Counter it by pairing with a Defog Corviknight

*Note that Defog also removes your own Stealth Rock and other hazards, so be careful.

Mega Charizard Y struggles against Stealth Rock can be Defog removed. Equipping Corviknight, which is hard for Garchomp or Hippowdon to take down, with Defog lets you fight while protecting Mega Charizard Y from Stealth Rock.

The ability Drought sets sunny weather, boosted Fire moves and instant Solar Beam attack — a special attacker build. Multiple Fire moves cover both repeat-fire and heavy single-hit needs.

Alternative Move Options

Dragon coverage is also an option

Against Dragon types absorbing Fire/Grass, Dragon Pulse is an option.

Role of the Sun Special Attacker

From favorable matchups, pressing boosted Fire moves to stress the opposing cycle — its ace role. Weather Grass and Rock coverage punish checks.

Threats

Disadvantage when weather-changers switch in

Sun dominance is high, but Drizzle and Sand Streamweather flips on switch-in reverse the game. Tyranitar in particular hits 4× weakness — a clear hard counter.

Heavy Sp.Atk investment, with post-Mega ability Drought — a special attacker Mega Charizard Y using weather change.Flame Charge boosts own Speed, pressing high-power special hits from above to sweep.

Alternative Move Options

Sub-weapon swap candidates

• Focus Blast

Mega Charizard Y has multiple sub-weapon options. For mirror matches, Ancient Power, STAB option Air Slash, or Rock-coverage like Tyranitar via Focus Blast etc. Pick based on which Pokémon to counter.

Role of the Flame Charge Sweep

Sun-boosted Fire Blast and charge-free Solar Beam break the opposing field as an ace.Flame ChargeAfter flipping Speed with broad coverage and high Sp.Atk can sweep the opposing team.

Threats

4× Rock-type weakness

4× Rock weakness — usually OHKO'd. Also, Stealth Rock damages 50% of HP on entry, so Stealth Rocksend it in before hazards are set.

Max Sp.Atk/Spe; Speed-boosting item — Charizard special attacker. Ability boosting own Sp.Atk in sunis leveraged for high special power from above — viable.

Alternative Move Options

Weather Ball interchangeable with Flamethrower

Flamethrower over Weather Ball is also recommended. Flamethrower works as Fire move outside sunwithout Overheat's penalty or accuracy issues.

Rich coverage vs. Fire-halvers

Rich coverage vs. Fire-resisters. Dragon Pulse hits Dragon weakness. Ancient Power vs. Charizard; Focus Blast vs. Tyranitar' 4x weakness.

Scarf Solar Power Role

Deploy in sun, item+ability boosted attack performancepressures opponent team as ace. Boosted Speed in tier lets it outpace fast attackers and pin from above.

Threats

Faster Scarf users and non-sun weather setters

Charizard can be KO'd before acting by faster Scarf users. Also, non-sun weather doesn't trigger Solar Power — threat. Switch out vs. threats.

Adamant Atk/Speed face-off build. Broad neutral range tanks most one-shots even without bulk investment. Tough Claws-boosted Flare Blitz, Outrage, and Swords Dance powers through even resisted hits, setting the match pace.

Role of the Swords Dance Flame Charge

Broad neutral range, above-average bulk, high power set early-game pace. Swords Dance handles walls, fills the rare role of high face-off breaker.

Threats

High-power Pokémon

Mega Charizard X's face-off is its strength but lacks survival guarantee. K.O. by high power makes the match tough — check unbeatable foes and adjust send order.

Boost Attack with Swords Dance and Speed with Flame Charge to sweep — a bulky setup ace. Roost heals damage; ability-boosted Dragon Claw pushes opponents over.

Alternative Move Options

Dragon Dance + Flare Blitz is also strong

Swap setup to Dragon Dance and Fire to Flare Blitz. Fairy/Steel that absorb Dragon Claw take big damage. Roost offsets recoil.

Role of the Bulky Setup Sweeper

High physical bulk and good resistances create favorable matchups, uses setup moves to break the opposing team — its role. After setup, healing maintains HP and STAB contact moves finish the opposing team.

Threats

Pokémon with weakness moves or high physical bulk

Base Speed is low, so faster attackers like Garchomp hitting weaknesses are tough. Also bulky chip users like Hippowdon with Earthquake and Stealth Rock chipping are also tough.

HP/Sp.Def/Speed investment with Will-O-Wisp's firepower drop and Roost healing — cushion-attacker absorbing opposing attacks Mega Charizard X build. Weakens opponents while pressing Tough Claws-boosted STAB.

Alternative Move Options

Swap Dragon Claw based on team

With Dragon Claw, no effective hit on Water/Fairy. Consider Thunder Punch depending on team.

Threats

High-power special

Despite bulk investment, special high-power moves unaffected by Will-O-Wisp are tough. Plan switches.

With heavy Def/Spe EV investment, after Mega Evolution a special attacker build that fights by leveraging the weather change from the ability Drought Mega Charizard Y. It supplements its power with the Sp. Atk boost from a Modest nature and the weather benefit, while raising its physical bulk to secure more turns and dominate the field.

EV Allocation Intent

By raising HP and Def with EVs, Rock Slide of the commonly used Garchomp can be endured. Also, Glimmora's Power Gem cannot be endured, so take the initiative and KO it with focused attacks alongside your teammates.

Alternative Move Options

Weather Ball is also recommended

OverheatIf you dislike accuracy issues or Sp.Atk drops, 100-accuracy Weather Ball is also recommended. Weather Ball, when the weather is にほんばれ状態, becomes a Fire-type move with 100 base power.

Doubles Heat Wave Build Role

Using its ability to set up harsh sunlight and boost Fire-type moves, while fulfills the role of an ace that pressures the entire opposing field with Heat Wave. Focused attacks on itself are Protectblocked, and against troublesome opponents such as Water types, Solar Beam allows it to hit weaknesses — a flexible, viable playstyle.

Threats

Rock-move users resisting Fire

It struggles against Pokémon that resist Fire moves and exploit its 4x Rock weakness. Especially fast Garchomp and Aerodactyl, as well as those that set the weather to すなあらし状態, such as Tyranitar, are its natural enemies.Protect or switching to avoid taking Rock moves, then counter with a teammate's move.