The Yggdrasil Trio is a trio of Legendary Pokémon that originate in the Kalos region and comprises Zygarde, Xerneas and Yveltal. Yggdrasil is a huge tree in Norse cosmology. It is said to be protected by three guardians. A bird protects the upper part of the tree. A deer protects the soil of the tree. A snake protects the underground of the tree. The same is true for Xerneas, Yveltal and Zygarde.
|Fairy||Xerneas is the Fairy-type member of the trio. It is said to be the giver of life. It protects the soil of trees. It has a Calm nature and the ability to stop destruction.
Its signature move is Geomancy.
|Dark/||Yveltal is the Dark/Flying-type member of the trio. Yveltal is the angry Pokémon and the sign of destruction. It protects the upper part of the tree.
Its signature move is Oblivion Wing.
|Dragon/Ground||Zygarde is the Dragon/Ground-type leader of the trio. Zygarde protects the environment and the underground of the tree.|
- Yveltal, unlike Xerneas and Zygarde, does not have a second forme. (Xerneas has active and passive and Zygarde has the Cell, Core, 10% and 100% alongside its 50% form).
- Xerneas is the only one in the trio who is not dual-typed.