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Evolution (Japanese進化(しんか)HepburnShinka) is the first evolution in the Pokémon franchise when one Pokémon, upon reaching a certain level, using certain stones, learning certain moves, or being traded, evolves into a different kind of Pokémon. In Pokémon Gold, Silver, Crystal, HeartGold and SoulSilver games, it is stated that Professor Elm is an expert on evolution, and discovered that Pikachu evolves from Pichu.

In the anime, during evolution, a Pokémon will become surrounded by a light and slowly change shape. From Pokémon the Series: The Beginning through to Pokémon the Series: Diamond and Pearl, the Pokémon is surrounded by a white light, while in Pokémon the Series: Black & White to Pokémon Journeys: The Series, the Pokémon is surrounded by a golden or blue light. An evolution can also occur through multiple Pokémon of the same species combining. In some occasions, when a Pokémon (such as Ash's Charmander, Serena's Eevee, and Goh's Sobble, or a wild Gossifleur from PJ122) is about to evolve, its outline shines or its body becomes slightly brighter in a blue color.

To some Pokémon, evolution means growing up, while to others, it just refers becoming another species or getting upgraded. However, many of them retain the memories of their life during their pre-evolution form. Evolution in the Pokémon games is more similar to metamorphosis (the process certain bugs undergo to become an adult) than actual evolution (a long process that happens to populations of creatures).


Pokémon gain experience after battling wild Pokémon and Pokémon Trainers. After gathering enough experience points, the Pokémon levels up. When a Pokémon reaches a particular level, it will evolve into its next form (if it has one). There are ways to share experience, such as allow a Pokémon to hold Exp. Share: a hold item that allows the user to earn experience even if it did not participate in the battle.

Evolution can be prevented by simply press the 'B' button on the Game when the Pokémon is attempting to evolve. This is useful as some Pokémon will learn moves that cannot be learnt in a later form or if you want a Pokémon to learn a move earlier than usual. For example, Gabite. If you let Gible evolve into Gabite at level 24 it will learn Dragon Rush at level 49, but if you keep Gible it will learn Dragon Rush at level 37. Sometimes it doesn't matter if you let it evolve or not. The Pokémon can hold an Everstone, which keeps them from evolving, so that you don't have to keep cancelling the evolution every time the Pokémon levels up. Although some Pokémon can evolve more than once (Poliwhirl, Wurmple, Applin etc.) some basic Pokémon just can't evolve, due to undiscovered forms, or if they are really rare (Chatot, Groudon, etc.). There are also Pokémon that can evolve into different things like love, choice, etc. (e.g. Eevee, Poliwhirl, Wurmple, or Kirlia)

Special conditions[]

Bag items[]

Some Pokémon will not evolve unless you use special items, mostly consisting of Evolutionary Stones, which are linked to the Pokémon's type. Here are a list of Pokémon that can evolve by giving them the items.

List of Pokémon that evolve by using items
Name Conditions Evolve to
Vulpix 0037 Fire Stone Bag Fire Stone Sprite Ninetales 0038
Growlithe 0058 Arcanine 0059
Eevee 0133 Flareon 0136
Pansear 0513 Simisear 0514
Pikachu 0025 Thunder Stone Bag Thunderstone Sprite Raichu 0026
Raichu (Alolan) 0026A
Eevee 0133 Jolteon 0135
Eelektrik 0603 Eelektross 0604
Charjabug 0737 Vikavolt 0738
Poliwhirl 0061 Water Stone Bag Water Stone Sprite Poliwrath 0062
Shellder 0090 Cloyster 0091
Staryu 0120 Starmie 0121
Eevee 0133 Vaporeon 0134
Lombre 0271 Ludicolo 0272
Panpour 0515 Simipour 0516
Gloom 0044 Leaf Stone Bag Leaf Stone Sprite Vileplume 0045
Weepinbell 0070 Victreebel 0071
Exeggcute 0102 Exeggutor 0103
Exeggutor (Alolan) 0103A
Eevee 0133 Leafeon 0470
Nuzleaf 0274 Shiftry 0275
Pansage 0511 Simisage 0512
Gloom 0044 Sun Stone Bag Sun Stone Sprite Bellossom 0182
Sunkern 0191 Sunflora 0192
Cottonee 0546 Whimsicott 0547
Petilil 0548 Lilligant 0549
Helioptile 0694 Heliolisk 0695
Nidorina 0030 Moon Stone Bag Moon Stone Sprite Nidoqueen 0031
Nidorino 0033 Nidoking 0034
Clefairy 0035 Clefable 0036
Jigglypuff 0039 Wigglytuff 0040
Skitty 0300 Delcatty 0301
Munna 0517 Musharna 0518
Roselia 0315 Shiny Stone Bag Shiny Stone Sprite Roserade 0407
Togetic 0176 Togekiss 0468
Minccino 0572 Cinccino 0573
Floette 0670 Florges 0671
Kirlia (♂ - Male) 0281 Dawn Stone Bag Dawn Stone Sprite Gallade 0475
Snorunt (♀ - Female) 0361 Froslass 0478
Murkrow 0198 Dusk Stone Bag Dusk Stone Sprite Honchkrow 0430
Misdreavus 0200 Mismagius 0429
Lampent 0608 Chandelure 0609
Doublade 0680 Aegislash 0681
Sandshrew (Alolan) 0027A Ice Stone Bag Ice Stone Sprite Sandslash (Alolan) 0028A
Vulpix (Alolan) 0037A Ninetales (Alolan) 0038A
Eevee 0133 Glaceon 0471
Darumaka (Galarian) 0554A Darmanitan (Galarian) 0555B
Applin 0840 Tart Apple Tart Apple Sprite Flapple 0841
Sweet Apple Sweet Apple Sprite Appletun 0842
Syrupy Apple Dipplin 1011
Sinistea 0854
Cracked Pot Cracked Pot Sprite Polteageist 0855
Sinistea 0854
Chipped Pot Chipped Pot Sprite Polteageist 0855
Slowpoke 0079A
Galarica Cuff Galarica Cuff Sprite Slowbro 0080A
Galarica Wreath Galarica Wreath Sprite Slowking 0199A
Scyther 0123 Black Augurite Kleavor 0900
Poltchageist 1012 Unremarkable Teacup Sinistcha 1013
Duraludon 0884 Metal Alloy Archaludon 1018

Held item evolutions[]

Some items are needed for a Pokémon to evolve. If a Pokémon hold the item allowing it to evolve, let it level up once and it will then evolve into the second form.

List of Pokémon that evolve by holding items
Name Conditions Evolve to
Gligar 0207 Held Item: Razor Fang at Night Gliscor 0472
Sneasel 0215 Held Item: Razor Claw at Night Weavile 0461
Sneasel (Hisuian) Held Item: Razor Claw at Day Sneasler 0903
Happiny 0440 Held Item: Oval Stone at Day Chansey 0113
Bisharp 0625 Held Item: Leader's Crest when defeating 3 Bisharp in a group Kingambit 0983

Trading and held item evolutions[]

A small group of Pokémon refuses to evolve, no matter if you are at the appropriate level to trigger the evolve process, unless you trade them with a friend. Some Pokémon need to have a held item to evolve when trading with a friend. Another group require specific Pokémon to be trade in order to evolve. In Pokémon Legends: Arceus, Pokémon that would evolve by being traded are instead evolved with a Linking Cord. Pokémon that would evolved while being traded and holding a certain item are evolved by being exposed to the item directly without needed to be traded.

List of Pokémon that evolve by trading
Name Conditions Evolve to
Kadabra 0064 None/Linking Cord in Legends: Alakazam 0065
Haunter 0093 Gengar 0094
Machoke 0067 Machamp 0068
Graveler 0075 Golem 0076
Graveler (Alolan) 0075A Golem (Alolan) 0076A
Boldore 0525 Gigalith 0526
Gurdurr 0533 Conkeldurr 0534
Phantump 0708 Trevenant 0709
Pumpkaboo 0710 Gourgeist 0711
Onix 0095 Held Item: Metal Coat Steelix 0208
Scyther 0123 Scizor 0212
Poliwhirl 0061 Held Item: King's Rock Politoed 0186
Slowpoke 0079 Slowking 0199
Seadra 0117 Held Item: Dragon Scale Kingdra 0230
Porygon 0137 Held Item: Upgrade Porygon2 0233
Clamperl 0366 Held Item: Deep Sea Scale Gorebyss 0368
Held Item: Deep Sea Tooth Huntail 0367
Electabuzz 0125 Held Item: Electirizer Electivire 0466
Magmar 0126 Held Item: Magmarizer Magmortar 0467
Rhydon 0112 Held Item: Protector Rhyperior 0464
Porygon2 0233 Held Item: Dubious Disc Porygon-Z 0474
Feebas 0349 Held Item: Prism Scale (Generation V-) Milotic 0350
Dusclops 0356 Held Item: Reaper Cloth Dusknoir 0477
Shelmet 0616 Trade for Karrablast Accelgor 0617
Karrablast 0588 Trade for Shelmet Escavalier 0589
Spritzee 0682 Held Item: Sachet Aromatisse 0683
Swirlix 0684 Held Item: Whipped Dream Slurpuff 0685

Gender evolution[]

Small groups of Pokémon requires a gender to evolve into the next stage.

List of Pokémon that evolve by exclusive gender
Name Conditions Evolve to
Kirlia 0281 Dawn Stone Bag Dawn Stone Sprite (♂ - Male) Gallade 0475
Burmy 0412 0412A 0412B Level 20, (♀ - Female) Wormadam 0413 0413A 0413B
Level 20, (♂ - Male) Mothim 0414
Combee 0415 Level 25, (♀ - Female) Vespiquen 0416
Snorunt 0361 Dawn Stone Bag Dawn Stone Sprite, (♀ - Female) Froslass 0478
Salandit 0757 Level 33, (♀ - Female) Salazzle 0758

Friendship evolutions[]

Certain Pokémon, especially baby Pokémon, requires friendship with its trainer and if they are fond enough, they are willing to evolve. Some Pokémon only evolves in a certain time of the day with friendship.

List of Pokémon that evolve by friendship
Name Conditions Evolve to
Golbat 0042 None Crobat 0169
Chansey 0113 Blissey 0242
Pichu 0172 Pikachu 0025
Cleffa 0173 Clefairy 0035
Igglybuff 0174 Jigglypuff 0039
Togepi 0175 Togetic 0176
Azurill 0298 Marill 0183
Buneary 0427 Lopunny 0428
Munchlax 0446 Snorlax 0143
Woobat 0527 Swoobat 0528
Swadloon 0541 Leavanny 0542
Type: Null 0772 Silvally 0773
Eevee 0133 at Day Espeon 0196
Budew 0406 Roselia 0315
Riolu 0447 Lucario 0448
Meowth (Alolan) 0052A At Night Persian (Alolan) 0053A
Eevee 0133 Umbreon 0197
Chingling 0433 Chimecho 0358
Snom 0872 Frosmoth 0873

Location-based evolutions[]

Special Pokémon evolve by leveling up at a certain area of location.

List of Pokémon that evolve by exclusive location
Name Conditions Evolve to
Magneton 0082 Locations with an Special Magnetic Field
(Gen. IV-VII)
Magnezone 0462
Nosepass 0299 Probopass 0476
Charjabug 0737 Vikavolt 0738
Eevee 0133 Locations with an Moss Rock
(Gen. IV-VII)
Leafeon 0470
Locations with an Ice Rock
(Gen. IV-VII)
Glaceon 0471
Crabrawler 0739 Mount Lanakila Crabominable 0740

Attack-based evolutions[]

Certain Pokémon need to know a move to evolve. This method was introduced in Generation IV, starting with Diamond/Pearl/Platinum.

List of Pokémon that evolve by knowing moves
Name Conditions Evolve to
Tangela 0114 Learning Ancient Power Tangrowth 0465
Yanma 0193 Yanmega 0469
Piloswine 0221 Mamoswine 0473
Bonsly 0438 Learning Mimic Sudowoodo 0185
Mime Jr. 0439 Mr. Mime 0122
Lickitung 0108 Learning Rollout Lickilicky 0463
Aipom 0190 Learning Double Hit Ambipom 0424
Steenee 0762 Learning Stomp Tsareena 0763
Poipole 0803 Learning Dragon Pulse Naganadel 0804
Clobbopus 0852 Learning Taunt Grapploct 0853
Primeape 0057 Learning Rage Fist Annihilape 0979
Girafarig 0203 Learning Twin Beam Farigiraf 0981
Dunsparce 0206 Learning Hyper Drill Dudunsparce 0982
Dipplin 1011 Learning Dragon Cheer Hydrapple 1019

Time-based evolutions[]

The current time of day will sometimes affect evolution. This method was introduced in Generation VI, starting with X/Y/OR/AS.

List of Pokémon that evolve by time
Name Conditions Evolve to
Ursaring 0217 (Hisui) Expose to a Peat Block during a full moon Ursaluna 0901
Tyrunt 0696 Level 39+ during the day. Tyrantrum 0697
Amaura 0698 Level 39+ during the night. Aurorus 0699
Rattata (Alolan) 0019A Level 20+ during the night. Raticate (Alolan) 0020A
Cubone 0104(Alola) Level 28+ during the night. Marowak (Alolan) 0105A
Yungoos 0734 Level 20+ during the day. Gumshoos 0735
Rockruff 0744 Level 25+ during the day. Lycanroc (Midday) 0745
Level 25+ during the night. Lycanroc (Midnight) 0745Mn
Level 25+ during the dusk with Own Tempo Ability. Lycanroc (Dusk) 0745Du
Fomantis 0753 Level 25+ during the day. Lurantis 0754
Linoone (Galarian) 0264A Level 35+ at night. Obstagoon 0862

Unique evolutions[]

Some Pokémon have unique ways of evolving.

List of Pokémon that evolve by other methods
Name Conditions Evolve to
Farfetch'd (Galarian) 0083A Get 3 Critical Hits in 1 Battle Sirfetch'd 0865
Eevee 0133 2+ Affection in Pokémon-Amie or Pokémon Refresh/Has high friendship, learn a Type Fairy-type move. Sylveon 0700
Wurmple 0265 Level 7 (Random depending on PV - Personality Value) Silcoon 0266
Cascoon 0268
Qwilfish 0211A Use Barb Barrage twenty times in Strong Style Overqwil 0904
Stantler 0234 Use Psyshield Bash twenty times in Agile Style Wyrdeer 0899
Tyrogue 0236 Level 20, Attack stats more than Defense Hitmonlee 0106
Level 20, Defense stats more than Attack Hitmonchan 0107
Level 20, Attack stats equal to Defense Hitmontop 0237
Feebas 0349 Maxed out Beauty Condition and then level up (Generation III - IV) Milotic 0350
Nincada 0290 Level 20, with empty Poké Ball and an open slot on your party. Shedinja 0292
Mantyke 0458 Level up with a Remoraid in the party. Mantine 0226
Basculin (Hisui) 0550B Lose at least 294 HP from recoil damage, not counting damage that results in it fainting Basculegion 0902
Yamask (Galar) 0562A Walk under the stone bridge in Dusty Bowl after Yamask has taken at least 49 HP in damage without fainting. Runerigus 0867
Pancham 0674 Level 32+ with a Type Dark-type in your party. Pangoro 0675
Inkay 0686 Level 30+ while holding the Nintendo 3DS upside down/the Nintendo Switch upside down in handheld mode when disconnecting the Pro Controller by removing the Switch from the docking station. Malamar 0687
Sliggoo 0705 Level 50+ during rainy or foggy weather. Goodra 0706
Cosmoem 0790 Level 53+ in Pokémon Sun, Ultra Sun, or Sword. Solgaleo 0791
Level 53+ in Pokémon Moon, Ultra Moon, or Shield. Lunala 0792
Meltan 0808 Evolve in Pokémon GO once the player has 400 Meltan Candies. Melmetal 0809
Toxel 0848 Level 30+ with Bashful, Bold, Calm, Careful, Gentle, Lonely, Mild, Modest, Quiet, Relaxed, Serious, or Timid Nature. Toxtricity (Low Key) 0849A
Level 30+ with Adamant, Brave, Docile, Hardy, Hasty, Impish, Jolly, Lax, Naive, Naughty, Rash, Quirky, or Sassy Nature. Toxtricity (Amped) 0849
Milcery 0868 Spin clockwise for 5 seconds during the day, holding a Sweet Alcremie (Vanilla Cream) 0869
Spin counter-clockwise for 5 seconds during the day, holding a Sweet Alcremie (Ruby Cream) 0869RC
Spin clockwise for 5 seconds during the night, holding a Sweet Alcremie (Matcha Cream) 0869MaC
Spin counter-clockwise for 5 seconds during the night, holding a Sweet Alcremie (Salted Cream) 0869SC
Spin clockwise for more than 5 seconds during the day, holding a Sweet Alcremie (Caramel Swirl) 0869CS
Spin counter-clockwise for more than 5 seconds during the day, holding a Sweet Alcremie (Ruby Swirl) 0869RuS
Spin clockwise for more than 5 seconds during the night, holding a Sweet Alcremie (Lemon Cream) 0869LC
Spin counter-clockwise for more than 5 seconds during the night, holding a Sweet Alcremie (Mint Cream) 0869MiC
Spin counter-clockwise for more than 10 seconds during the dusk/dawn, holding a Sweet Alcremie (Rainbow Swirl) 0869RaS
Kubfu 0891 Complete the Tower of Darkness Urshifu (Single Strike Style) 0892
Complete the Tower of Waters Urshifu (Rapid Strike Style) 0892

Mega Evolution[]

Certain Pokémon will be able to Mega Evolve with the use of a Mega Stone, a held item, if its Trainer has a Key Stone. However, the Pokémon will revert into their non-Mega Evolved form at the end of the battle, or after the Pokémon faints.


Primal Reversion[]

Primal Reversion is a similar state to Mega Evolution, but the Pokémon devolve to a previous state in the past.

It is a possible game mechanic in Pokémon Omega Ruby and Pokémon Alpha Sapphire, most likely because this mechanic was founded during development of Pokémon Omega Ruby & Alpha Sapphire.


Devolution is a form of reverse evolution when a Pokémon reverts to a previous state. The only instance devolution happens in the games is in Pokémon Super Mystery Dungeon, in which the player Pokémon and partner Pokémon evolve and soon devolve three times during the main story, and Pokémon Mystery Dungeon: Gates to Infinity, which includes the Devolve Orb that devolves all enemies in the room.

Devolution is common in the Manga and TCG. It is achieved mainly unnaturally—through experimentation, or Devolution Spray. Though certain Pokémon, such as Isamu's Clefairy and Pikachu are capable of devolving themselves. The TCG also has it that Eeveelutions can revert into Eevee and that Mew has two special attacks named the Devolution Beam and Devo Crush - both of which which devolves the Pokémon hit by the attack. Golurk and Jirachi also possess special attacks which allow them to devolve an opposing Pokémon.


In "Electric Shock Showdown", Misty points out that once Pikachu evolves with the use of the Thunder Stone, Pikachu won't revert.

In "An Epic Defense Force", Luke's Golett seemingly evolves to Golurk in a Movie then devolves back to Golett. This repairs the Golurk Statue, since it turns out to be fictitious.

Another instance of the non-existence of devolution, is when Bonnie requested Ash's Frogadier to devolve back to Froakie, Clemont said that it would be impossible.

In “The Gates of Warp!” and Showdown at the Gates of Warp!”, a number of Pokemon have devoted to their earlier forms, then into eggs, including Ash’s Pikachu, but when Palkia and Dialga stopped fighting, the Pokemon returned to their normal forms.


  • There are eight Pokémon that can evolve into two different Pokémon, but only two that evolve into more: Tyrogue (three) and Eevee (eight).
  • As of Generation VIII, there are 87 Pokémon that do not evolve in any way. This is discounting Legendary Pokémon, Mythical Pokémon, and form changes such as Mega Evolution.
  • In "Dream a Little Dream from Me!", there is a group of Pokémon who evolved and devolved unnaturally, one actually missing its second evolved form.
  • In Final Rivals!, an evolution has occurred through multiple Pokémon of the same species combining, which was shown by Ash's Meltan and its horde.
  • Larvesta evolves at the highest level out of all unevolved Pokémon so far (level 59).
  • Zweilous evolves at the highest level out of any evolved Pokémon so far (level 64).
  • Porygon is currently the only Pokémon to be able to evolve at level 1 into both its evolutions, as they do not need a certain level to evolve.
  • Generation VII was the first generation to introduce Legendary and Mythical Pokémon capable of evolution.
  • Poipole is the only Ultra Beast that can evolve.