Protosynthesis (Ability)

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Protosynthesis こだいかっせい
Ancient Activation
Flavor text
Generation IX
Boosts the Pokémon's most proficient stat in harsh sunlight or if the Pokémon is holding Booster Energy.

Protosynthesis (Japanese: こだいかっせい Ancient Activation) is an Ability introduced in Generation IX. It is the signature Ability of the ancient Paradox Pokémon with the exception of Koraidon.


In battle

0385Jirachi.png This Ability effect may be in need of research.
Reason: Check for other moves/Abilities that can or cannot copy/replace/suppress this Ability. Usual suspects: Simple Beam, Power of Alchemy, Mummy.
What happens if Cloud Nine is active?

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When a Pokémon with Protosynthesis is in harsh sunlight or is holding Booster Energy, its highest stat (other than HP and taking into account stat stages, but not held items) is increased by 30%, or 50% if Speed is the highest stat. Upon activation, a message tells which stat is increased to all the players. If multiple stats are tied for highest, Protosynthesis breaks the tie by prioritizing Attack, Defense, Special Attack, Special Defense, and Speed, in that order.

Protosynthesis will activate in harsh sunlight even if the Pokémon is holding a Utility Umbrella. Harsh sunlight will activate Protosynthesis before a held Booster Energy, so the Booster Energy will not be consumed if the Pokémon with Protosynthesis is in harsh sunlight.

Skill Swap and Doodle will fail if either Pokémon has Protosynthesis. Worry Seed, Gastro Acid, Role Play, and Entrainment will fail if the target has Protosynthesis. Protosynthesis cannot be copied by Receiver or replaced by Lingering Aroma.

Outside of battle

Protosynthesis has no effect outside of battle.

Pokémon with Protosynthesis

# Pokémon Types First Ability Second Ability Hidden Ability
Great Tusk Great Tusk
Ground Fighting Protosynthesis None None
Scream Tail Scream Tail
Fairy Psychic Protosynthesis None None
Brute Bonnet Brute Bonnet
Grass Dark Protosynthesis None None
Flutter Mane Flutter Mane
Ghost Fairy Protosynthesis None None
Slither Wing Slither Wing
Bug Fighting Protosynthesis None None
Sandy Shocks Sandy Shocks
Electric Ground Protosynthesis None None
Roaring Moon Roaring Moon
Dragon Dark Protosynthesis None None
Walking Wake Walking Wake
Water Dragon Protosynthesis None None
Please note that this is only 100% accurate to Generation IX games.
  • For Generation III games, ignore Abilities introduced in Generation IV or later and Hidden Abilities.
  • For Generation IV games, ignore Hidden Abilities.
  • For Generation V games, ignore Abilities introduced in Generation VI or later.
  • For Generation VI games, ignore Abilities introduced in Generation VII or later.
  • For Generation VII games, ignore Abilities introduced in Generation VIII or later.
  • For Generation VIII games, ignore Abilities introduced in Generation IX or later.


In other languages

Language Title
Chinese Cantonese 古代活性 Gúdoih Wuhtsing
Mandarin 古代活性 Gǔdài Huóxìng
France Flag.png French Paléosynthèse
Germany Flag.png German Paläosynthese
Italy Flag.png Italian Paleoattivazione
South Korea Flag.png Korean 고대활성 Godae Hwalseong
Spain Flag.png Spanish Paleosíntesis

Variations of the Ability Protosynthesis
ProtosynthesisQuark Drive
Abilities affected by weather conditions
Sand VeilSwift SwimChlorophyllRain DishForecastSnow CloakDry SkinHydrationSolar PowerLeaf GuardIce BodyFlower GiftHarvestSand RushSand ForceSlush RushIce FaceProtosynthesisOrichalcum Pulse

Project Moves and Abilities logo.png This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.