Rayquaza

Rayquaza does not evolve.

Pokémon Ruby

"RAYQUAZA lived for hundreds of millions of years in the earth’s ozone layer, never descending to the ground. This POKéMON appears to feed on water and particles in the atmosphere."

Pokémon Sapphire

"RAYQUAZA is said to have lived for hundreds of millions of years in the earth’s ozone layer, above the clouds. Its existence had been completely unknown because it lived so high in the sky."

Pokémon Emerald

"A POKéMON that flies endlessly in the ozone layer. It is said it would descend to the ground if KYOGRE and GROUDON were to fight."

Pokémon FireRed

"It has lived for hundreds of millions of years in the ozone layer. Its flying form looks like a meteor."

Pokémon Diamond

"It lives in the ozone layer far above the clouds and cannot be seen from the ground."

Pokémon HeartGold

"It flies in the ozone layer, way up high in the sky. Until recently, no one had ever seen it."

• 
  Dratini
• 
  Dragonair
• 
  Dragonite
• 
  Kingdra