In my own words ledgendary pokemon are very strong who have a purpose for their presents.
The Legendary Birds: Moltres; Fire Articuno; Flying Zapdos; Electric
The Legendary Beasts: Entei; Fire Suicune; Water Raikou; Electric
The Weather Trio: Kyogre; Water Groudon; Ground Rayquaza; Flying/Dragon
The Regi Trio: Regice; Ice Registeel; Steel Regirock; Rock
The Lake Trio: Azelf; Psychic Mesprit; Psychic Uxie; Psychic
The Creation Dragon Trio: Dialga; Steel/Dragon Palkia; Dragon/Water Giratina; Ghost/Dragon
The Lunar Duo: Cresselia; Psychic Darkrai; Dark
The Energy Trio: Zekrom; Electric/Dragon Kyurem; Ice/Dragon Reshiram; Dragon/Fire
The Kami Trio: Tornadus; Flying Landorus; Ground/Flying Thundurus; Electric/Flying
The Musketeers Trio: Cobalion; Fighting/Steel Terrakion; Fighting/Rock Virizion; Grass/Fighting
Mew and Mewtwo: Mew; Psychic Mewtwo; Psychic
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ONES WITHOUT GROUPS: Ho-Oh; Flying/Fire- Lugia; Psychic/Flying- Deoxys; Psychic- Jirachi; Psychic/Steel- Heatran; Steel/Fire- Regigigas; Normal- Manaphy; Water- Phione; Water- Shaymin; Grass- Keldeo; Fighting/Water- Victini; Psychic/Fire- Meloetta; Psychic/Normal -Genesect; Steel/Bug-Arceus; Normal-Celebi; Psychic/Grass
Celebi; Psychic/Grass
Suicune; Water
Arceus; Normal
