Pokémon #384 in the National Pokédex, a dual-type Dragon/Flying Legendary Pokémon.
Rayquaza is a large, green, serpentine creature. It has red-tipped, rudder-like wings on its shoulders and down its body, and similarly patterned fins on the tip of its tail.
Along with Kyogre and Groudon, Rayquaza is a part of the weather trio serving as its trio master, since it eased the conflict between Kyogre and Groudon.
It can Mega Evolve into Mega Rayquaza if it knows the move Dragon Ascent. Due to the lack of a Mega Stone, Mega Rayquaza is the only Mega-Evolved Pokémon to be able to hold items.