This includes:
* The Lake Guardians: Uxie, Mesprit, and Azelf
* The Creation Trio: Dialga, Palkia, and Giratina
* The Regis: Regice, Regirock, and Registeel
* Other Legendaries: Cresselia, Heatran, Regigigas, Phione, Manaphy, Darkrai, Shaymin, Arceus, and more.
Remember that some legendary Pokémon are only obtainable through special events or trading.