Level-based Evolution

Level-based Evolution refers to Pokémon that evolve when leveling up with at least a certain level in the Pokémon games. This is the most common method of Evolution, which was introduced in Generation I.
==List of level-based Evolutions==
==In the core series games==
A level-based Evolution is triggered once the Pokémon levels up at the end of a Pokémon battle or by the use of a Rare Candy, with each Evolution requiring a certain minimum level. If the unevolved Pokémon already has a higher level than required, it is still able to evolve whenever it levels up. For instance, a is able to evolve into starting at level 16.
The level-based Evolution can be prevented if the player presses B when the Pokémon attempts to evolve or if the Pokémon is holding an Everstone. A Pokémon is also able to level up without evolving when it is in the Pokémon Day Care or . Several level-based evolved Pokémon have a higher number of available moves than their unevolved forms. However, the unevolved forms often have a faster learning rate, learning certain moves at lower levels than their evolved forms.
In most cases, the level-based Evolutions have no requirements other than the starting level. However, some of those Evolutions are only triggered if the Pokémon levels up in a certain region, at a certain time, if the Pokémon has a certain gender, and so on.
===Underleveled Pokémon===
In the games, there are some instances of evolved wild Pokémon. For instance, evolves into starting at level 18, but there are also level 9 wild Pidgeotto in Viridian Forest. Some non-player characters use underleveled Pokémon in their teams as well.
===Level 100 Pokémon===
From Generation I to , a level 100 Pokémon is permanently unable to evolve by leveling up. For instance, a level 100 Bulbasaur is unable to evolve into Ivysaur in those generations.
From Generation VIII onwards, if a Rare Candy is used on a level 100 Pokémon that evolves by leveling up and currently meets its Evolution requirements, it will evolve without gaining a level. However, is required to gain a level in battle in order to evolve into , therefore a level 100 Tandemaus is permanently unable to evolve.
==In the spin-off games==
===Pokémon Mystery Dungeon series===
In the Pokémon Mystery Dungeon series, the level-based is available after the Pokémon has reached the required level after the Evolution location has been unlocked in the current game. The Evolution must be triggered at this location instead of taking place automatically like in the core series.
===Pokémon Snap===
In Pokémon Snap, the player can interact with Pokémon in certain ways that will make them evolve which would be equivalent to level-based Evolutions in the core series games. This includes Evolutions from to , from to , from to , from to , and from to .
===Pokémon UNITE===
In Pokémon UNITE, this is the only method of Evolution available, but this occurs at different levels than those in the core series games. For instance, a Lv. 5 Bulbasaur evolves into Ivysaur, and a Lv. 7 Ivysaur evolves into . This also applies to Pokémon that would evolve using a different method in the core series games, such as a Lv. 4 Clefairy evolving into (instead of using a Moon Stone for this Evolution).
See the list of Pokémon for all the available Pokémon Evolution levels.
===Pokémon Pinball series===
In Pokémon Pinball and Pokémon Pinball: Ruby & Sapphire, as seen when a Pokémon is able to evolve during the Evolution Mode, the level-based Evolutions are represented by the Experience : or . The player is required to obtain three instances of this item on the pinball table in order to evolve the current Pokémon.
===e-Reader games===
In Machop At Work, if the player character smashes 50-99 rocks, it evolves into at the end.
==In animation==
In the multiple anime series, the concept of levels is not usually mentioned in-universe. Instead, Pokémon often evolve when they train and become stronger, which usually corresponds to the level-based Evolutions available in the games.
==Trivia==
* All the level-based Evolutions introduced in Generations , , and in Pokémon Sword and Shield have no additional requirements.
** was the first Pokémon with additional requirements other than the starting level. Specifically, it evolved into , , or depending on its stats, starting at level 20.
* All the Pokémon available in a trio of first partner Pokémon are members of three-stage level-based evolutionary lines.
==Related articles==
Category:Methods of Evolution