As a Dragon/Flying type, Mega Rayquaza has 3 weaknesses, 5 resistances and 1 immunity, about the same as the average Pokémon's 3.3 weaknesses. 8 other Pokémon share the Dragon/Flying typing.

Delta Stream (always, already counted above): Rock 2× → 1×, Ice 4× → 2× (its strong winds weaken moves that are super effective against Flying types)

Base stats

HP: 105
Attack: 180
Defense: 100
Sp. Atk: 180
Sp. Def: 100
Speed: 115
Total: 780

Mega Rayquaza has a base stat total of 780, higher than 100% of Pokémon. Its Attack (180) and Sp. Atk (180) are close, so it can run physical or special moves. A Speed of 115 beats 92% of Pokémon, so it outspeeds most opponents. With 105 HP, 100 Defense and 100 Sp. Def it is bulky.

Mega Rayquaza's only ability is Delta Stream.

How to beat Mega Rayquaza

Mega Rayquaza takes 2× damage from Ice, Dragon and Fairy moves, so lead with those.

Avoid relying on attacks it shrugs off: Ground moves have no effect on it and Fighting, Bug, Fire, Water and Grass moves are resisted.

Good counters: Crowned Zacian hits for 2× with Fairy-type STAB and is immune to Mega Rayquaza's Dragon moves and resists its Flying moves. Diancie hits for 2× with Fairy-type STAB and is immune to Mega Rayquaza's Dragon moves and resists its Flying moves. Magearna hits for 2× with Fairy-type STAB and is immune to Mega Rayquaza's Dragon moves and resists its Flying moves.

Evolution

Mega Rayquaza is a Mega Evolution of Rayquaza, so it shares Rayquaza's evolution line.

Best counters to Mega Rayquaza

Other Dragon/Flying Pokémon

Frequently asked questions

What is Mega Rayquaza weak to?

As a Dragon/Flying type, Mega Rayquaza takes super-effective damage from Ice, Dragon and Fairy moves.

What is Mega Rayquaza resistant to?

Mega Rayquaza resists Fighting, Bug, Fire, Water and Grass (¼×) moves. It is immune to Ground.

What are the best counters to Mega Rayquaza?

Strong type-based picks include Crowned Zacian, Diancie and Magearna, which hit Mega Rayquaza with super-effective attacks.