Allearth Forest (Japanese: オルアースの森 Allearth Forest) is a large
forest with a huge waterfall, that neighbors the Diamond Domain.
Long ago, a terrible catastrophic event occurred in Allearth Forest.
This event, called the "Great Destruction", was caused by Yveltal whose
Oblivion Wing destroyed the forest and harmed many Pokémon. Out of
nowhere, Xerneas stepped in and stopped Yveltal from causing any more
destruction. Yveltal then went into a deep slumber in a cocoon located in a
hole underneath Allearth Forest as Xerneas turned into a giant tree
to protect the forest and Pokemon.
