Pseudo-Legendary Pokémon are a group of powerful Pokémon with a base stat total of 600, who aren't actually classified as "Legendary" because they can...

• be found more than once.
• Evolve.
• breed.

They are also part of a 3-stage Evolutionary line and have 2-types by their third evolution. They also have an exact base stat-total of 600.

List of Pseudo-Legendaries

Dragonite	Tyranitar	Salamence	Metagross	Garchomp	Hydreigon
Dragon/Flying	Rock/Dark	Dragon/Flying	Steel/Psychic	Dragon/Ground	Dark/Dragon

Semi-Pseudo

Semi-pseudois a term used to describe a Pokémon who is often mistaken for a pseudo-Legendary, but fail to meet the criteria to be a pseudo-legendary. The most notable example of this lies in the fact that all the semi-pseudos have a base stat total that does not equal 600, so they cannot be considered pseudo-legendary by definition. Pseudo-legendary Pokémon are usually uncommon/rare.

Slaking	Flygon	Aggron	Haxorus
Normal	Ground/Dragon	Steel/Rock	Dragon

Lucario	Zoroark	Volcarona
Fighting/Steel	Dark	Bug/Fire

Trivia

• Four of the six pseudos are Dragon-type.
• All of the pseudo-legendary Pokémon have an immunity.
• The Johto Region is the only region without a Dragon-type Pseudo.
• Hoenn is the only region, as of yet, to contain 2 pseudo-Legendary Pokémon.
  • Coincidentally, they are usually found in hard-to-find places. For example: Bagon (Salamence's basic stage) can only be found at the back of Meteor Falls Cave with the use of Surf and Waterfall. Meaning that you'd need eight Gym Badges to even think about going there. And Metagross can only be obtained after the player defeats the Elite Four and Steven, the player must then go to Steven's house, the player then recives a Beldum
• Metagross is the only Steel/Psychic-type pseudo-Legendary.
• Lucario and Zoroark are mistaken as pseudo-Legendaries because of the way in which they are to be obtained.
  • Lucario can only be obtained in Diamond and Pearl on Iron Island when Riley gives the player a Riolu Egg.
  • Zoroark is, as of yet, the only non-Mythical Pokémon that can only be caught via an event. Because of this, it is mistaken as a Legendary. Zoroark can only be obtained when either a Raikou, Entei or Suicune is taken to Lostlorn Forest outside Nimbasa City. It is possible to obtain Zoroark's pre-evolution, Zorua, but it too, can only be obtained via event. Zorua needs an event Celebi to be captured.
• Tyranitar and Metagross are the only pseudos that cannot learn dragon-type moves by leveling up.
  • However, Metagross is the only pseudo that cannot learn a dragon-type move at all.