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- Primal redirects here. For the Pokémon from Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness and Pokémon Mystery Dungeon: Explorers of Sky, see Primal Dialga.
Primal Groudon and Primal Kyogre
Primal Reversion (Japanese: ゲンシカイキ Primal Regression) is an ancient transformation that debuted in Omega Ruby and Alpha Sapphire. Pokémon that have undergone Primal Reversion are distinguished by the word "Primal" in front of their species name. It is similar to Mega Evolution, but, instead of using the energy of people and Pokémon, the user instead absorbs the energy of nature to greatly increase its power. Primal Reversion is said to restore the true powers of a Pokémon.
In order to undergo Primal Reversion, a Pokémon only needs to be holding the appropriate Orb. Like Mega Stones, Orbs cannot be removed if held by the appropriate Pokémon. Unlike Mega Evolution, however, the player does not need a Key Stone or have to manually trigger Primal Reversion; it will simply happen automatically after the Pokémon enters battle and after any entry hazards take effect, but before the activation of weather-changing Abilities. In a Rotation Battle, the Pokémon will only undergo Primal Reversion if it is sent out in the primary position; the Primal Reversion will not activate if the Pokémon is sent out in a secondary position at the start of the battle and then rotated to the primary position. Also unlike Mega Evolution, there is no limit to the number of times a Primal Reversion may be performed per battle.
Pokémon capable of Primal Reversion
In the anime
Primal Groudon in the anime
Primal Groudon and Primal Kyogre both appeared in Mega Evolution Special III, where they had a clash with one another off the coast of Rustboro City. Alain and Steven attempted to fight the ancient Pokémon with their Mega Charizard X and Mega Metagross, but were soon overpowered. Soon after, Mega Rayquaza appeared, battled, and eventually managed to defeat the two Primal Pokémon, causing them to return to their regular forms.
Primal Groudon and Primal Kyogre also appear in Hoopa and the Clash of Ages, where they were summoned and controlled by Hoopa Unbound along with the Creation trio and Kyurem to attack Ash, Pikachu, Hoopa Confined, Shiny Rayquaza, and the Eon duo in Dahara City.
In the TCG
Primal Reversion were brought into the Trading Card Game with the release of Primal Clash (Gaia Volcano • Tidal Storm in Japan). Primal Reversion is an extension of the Mega Pokémon-EX mechanic, evolving from the long-standing Pokémon-EX. The only Primal Pokémon-EX are the Primal Kyogre-EX and Primal Groudon-EX cards from Primal Clash and Ancient Origins. Although not exclusive to the mechanic, each Primal Reversion Pokémon features a new card effect named Ancient Trait, providing an additional effect for each card. The Ancient Origins prints feature the shiny versions of the Pokémon, and replaces the original Ancient Traits with θ Max, but are otherwise identical to the Primal Clash cards.
In other languages