Pokémon availability (Legends: Arceus)

Pokémon Legends: Arceus is compatible with 242 , including all the Pokémon that debuted in Generation IV.
==Availability==
All 242 Pokémon are obtainable in-game. Most are repeatedly catchable in one or more of the 5 main areas: Obsidian Fieldlands, Crimson Mirelands, Cobalt Coastlands, Coronet Highlands, and Alabaster Icelands.
* However, the 5 Mythical Pokemon present (all of which are from Generation IV) have restricted accessibility. can only be obtained after obtaining 237 Pokemon; and almost surely requires external hints that are found in ; and and are only unlockable via save data bonuses from other Generation VIII games.
** In order to obtain , the player must have caught all 237 non-Mythical Pokemon in the Hisui Pokédex. This unlocks the "The Deified Pokemon", in which Arceus can be obtained.
** In order to obtain and , the player must have Quelled Lord Arcanine and have a star rank of 5, making the "The Sea's Legend" available. Echoing the Sea's Legend book found in Canalave Library in , they then must have , and in their party whilst they surf between the gate at Sand's Reach in the evening. If successful, Manaphy and three Phione can be caught in Seaside Hollow, with Phione being a rare spawn thereafter.
** In order to obtain , the player must have save data from on their Nintendo Switch system. If this requirement is met and the main story of Legends: Arceus has been completed, the "The Darksome Nightmare" will become available, in which a Darkrai can be caught.
** In order to obtain , the player must have save data from on their Nintendo Switch system. If this requirement is met and the main story of Legends: Arceus has been completed, the "A Token of Gratitude" will become available, in which a Shaymin can be caught.
* Additionally, Alolan and the 13 Legendary Pokemon can only be obtained through in-game events.
** In order to obtain Alolan , the player must catch the original form of and obtain Hisuian as a ride Pokemon. If these requirements are met, the request "Snow-White Vulpix in the Snow" will become available, in which an Alolan Vulpix is gifted.
** and can be caught towards to the end of the main story.
** , , , , and can be caught in the post-game story.
** , , and can be caught after defeating Volo in the Temple of Sinnoh.
** is only obtainable after catching Thundurus, Tornadus and Landorus first.
* Furthermore, obtaining requires collecting all wisps first (20 in each main area and 7 in Jubilife Village); and obtaining more requires catching a single specimen of each form first (5 in each main area and 3 in Jubilife Village). The player can also only obtain one Hisuian first partner Pokémon in-game until completion of the main story.
===Variant availability===
In total, Pokémon Legends: Arceus is compatible with 369 forms, including all 17 new Hisuian forms. All Hisuian forms replace their original forms, except in the case of , where both forms are included. 242 forms make up unique species, with an additional 59 forms being the result of gender differences. In addition to this, there are a further 27 , 5 , 2 and 2 forms; and a further 6 forms accounted by West/East Sea and , Alolan/Original and , Hisuian/Original , and Overcast/Sunshine . The remaining 26 forms, not yet counted, consist of 18 separate forms, as well as alternate forms for , , , , , , and . Cherrim cannot appear in its Sunshine form when stored and Legend Plate Arceus appears as Blank Plate Arceus when stored. Legend Plate Arceus also does not count as a separate form entry in the Pokédex. Heights and weights for gender differences, except , are not recorded separately in the Pokédex. Not included in the 369 total, are 2 additional forms, only separated internally, which are a result of evolution from either Plant, Sandy or Trash Cloak Burmy.
All forms can be obtained as alpha Pokémon except Alolan Vulpix, Alolan Ninetales, and those of the 18 in-game Legendary and Mythical Pokémon, totaling 46 forms excluded. All alpha Pokémon are the largest possible specimens for their species except , , , and Hisuian . Only one Alolan Vulpix (or Alolan Ninetales), and only one of each of the in-game Legendary and Mythical Pokémon (except ) can be obtained (and only in their average size) without transferring.
All forms and their alpha equivalents can be ; however, Alolan Vulpix, Alolan Ninetales, and the in-game Legendary and Mythical Pokémon are Shiny-locked and thus cannot be obtained Shiny without transferring them into the game. For the first three years, Shiny was not legally obtainable as a result. It first became obtainable via transfer on the game’s third anniversary, as a gift for completing the Hisui Pokédex in Pokémon HOME. Additionally, several in-game event Pokémon are Shiny-locked, but can be captured in the wild Shiny.
A selection of Pokémon can only be obtained in-game via rare spawns in space-time distortions, making their alpha, in-game Shiny, and Shiny alpha forms generally considered the rarest to collect in the game. These rare Pokémon are the original forms of and (in Obsidian Fieldlands); , and (in Crimson Mirelands); and (in Cobalt Coastlands); and , , , and (in Coronet Highlands). In addition, alpha and Shiny alpha can only be obtained by catching (or evolving from) a rare space-time distortion spawn. Two similarly rare categories are Pokémon obtained exclusively from shaking trees, namely and ; and female specimens of a species with a 7-male-to-1-female ratio, including the visibly gender different and .
A total of 519 gender-form combinations (including Sunshine and Legend Plate ) are possible. 201 species, and 209 out of 310 forms (excluding gender differences), can be both female and male, amounting to 418 combinations after doubling. The remaining combinations are from 101 single gender forms across 41 species, further divided into 24 gender unknown species (, the line, the line, the Hisuian line, the line, , , , , , , , , , , , and ) with a total of 78 forms; 7 male-only species (, , , Hisuian , , and ) with a total of 10 forms; and 10 female-only species (, , , , , , , , and ) with a total of 13 forms. For alphas, there are a total of 470 combinations, 49 less combinations, which consists of 46 less alpha forms for one gender and 3 less alpha forms (Alolan , Alolan , and ) for the opposite gender.
===Availability by Area===
In the Obsidian Fieldlands section of the Hisui Pokédex, 85 are listed, including the Legendary Pokémon and . Notably, 2 of these listed ( and ) are not obtainable from the area, however is. A further 22 unlisted species for the area are actually obtainable from it: 1 of these (Hisuian ) can be found near Ramanas Island, 10 (, , , , , , , , original and ) inside space-time distortions, 5 (, , , and ) during massive mass outbreaks, 3 (, and ) only via evolution, and the final 3 (, alpha and ) only via in-game events. For the 105 obtainable species in Obsidian Fieldlands, there are 41 additional forms in total—34 of these are the result of gender differences, 4 of these are other forms and 3 species (, and ) each have one extra form. The West Sea and forms, as well as the Plant Cloak and forms, are exclusive to this area.
In the Crimson Mirelands section of the Hisui Pokédex, 75 are listed, including the Legendary Pokémon and . A total of 35 unlisted species for the area are also obtainable: 13 (, , , , , , , , , and the line) inside space-time distortions, 2 ( and ) in mass outbreaks in Cottonsedge Prairie, 6 (, , , , and ) during massive mass outbreaks only, 3 (, , Hisuian ) unlockable in space-time distortions in addition to during massive mass outbreaks, 8 (, , , , , , and ) only via evolution, 2 ( and ) in-game-event-unlockable, and 1 (alpha ) only via an in-game event. For the 110 obtainable species in Crimson Mirelands, there are a total of 60 additional forms—31 of these are due to gender differences, 27 are forms, and 2 are forms of and . The Sandy Cloak forms of and are obtainable in this area.
In the Cobalt Coastlands section of the Hisui Pokédex, 96 are listed, including the Legendary Pokémon and . 6 (, , , , and ) are not obtainable from the area. 21 unlisted species for the area are actually obtainable: 10 (, , , , , , , , and ) inside space-time distortions, 6 (, , , , and ) during massive mass outbreaks, 1 () only via evolution, 1 () only in-game-event-unlockable, and 3 (, and ) which are in-game event only. For the 111 obtainable species in Cobalt Coastlands, a total of 34 additional forms are present—28 are due to gender differences, 4 are other forms and the remaining 2 are alternate formes for and . The East Sea forms of and are exclusive to this area, and the Trash Cloak and forms are also obtainable here.
In the Coronet Highlands section of the Hisui Pokédex, 90 are listed, including the Legendary Pokémon . 3 (, and ) are not obtainable from the area. 38 unlisted Pokémon for the area are actually obtainable: 12 (, , , , , , , , the line and the line) inside space-time distortions, 9 (, , , , , , , and ) during massive mass outbreaks only, 2 ( and ) in space-time distortions and during massive mass outbreaks, 3 (, , Hisuian ) unlockable in space-time distortions and during massive mass outbreaks, 7 (, , , , , and ) only via evolution, and 5 (, , , and ) only via in-game events. For the 125 obtainable species in Coronet Highlands, there are a total of 63 additional forms—33 are due to gender differences, 18 are other formes, 5 are other forms, 4 are other forms, and 3 species (, and ) each have one extra form. The Sandy Cloak forms of and are obtainable in this area.
In the Alabaster Icelands section of the Hisui Pokédex, 91 are listed, including the Legendary Pokémon , and . 2 (, ) are not obtainable from the area. 18 unlisted Pokémon for the area are actually obtainable: 8 (, , , , , , and ) inside space-time distortions, 3 (, and Hisuian ) unlockable in space-time distortions and during massive mass outbreaks, 4 (, , and ) during massive mass outbreaks only, 2 (, and ) via evolution only, and 1 () only via in-game events. The species total counts the original (Kantonian) Vulpix and Ninetales; Alolan Vulpix and Ninetales are obtained by an in-game event and evolution respectively. For the 107 obtainable species in Alabaster Icelands, a total of 31 additional forms are present—24 are due to gender differences, 4 are other forms, and 3 are one extra form each of , and . The Trash Cloak forms of and are obtainable in this area.
===Level availability===
All but 17 Pokémon can be obtained in-game at level 50 or below. These exceptions consist of and all and Pokémon apart from and . Spiritomb is obtainable at level 60 or above, and at level 65, at level 75, and the rest of the Legendary and Mythical Pokémon (apart from Manaphy and Phione) at level 70. On the other hand, Manaphy is obtained at level 50 and Phione between levels 33 and 36. Although Hisuian only evolves from at level 54 and above, the flying spawn at Lake Acuity can be caught at level 49.
The highest level a Pokémon can be obtained at (without leveling up) is level 91—this is an alpha Hisuian found inside a Crimson Mirelands space-time distortion. Alpha Pokémon are encountered at higher levels (+15 or +20) than their non-alpha counterparts within the same area.
Level 1 Pokémon cannot be obtained except via transferring from . This is because no breeding is present in the game, and the fact the lowest level wild Pokémon, such as and , are only encountered at level 2 or above.
===Pokémon HOME interaction===
Following the introduction of compatibility, the ability to transfer alpha Pokémon to other Generation VIII games became available. A consequence of this is an alpha Pokémon can be evolved into a different regional form (or species) not compatible with Pokémon Legends: Arceus, giving rise to 9 HOME-exclusive alpha forms: the original forms of , , , , , , ; the Galarian form of ; and . A 10th HOME-exclusive alpha form became available following the -HOME compatibility update: the original form of ; however, the alpha icon no longer displays for the HOME-exclusive alphas. Instead, an alpha mark is obtained if any alpha is transferred to Scarlet and Violet. All HOME-exclusive alpha forms except the Galarian form of and can be transferred and therefore obtain the alpha mark. With the same process, these 10 forms can possess the Legends: Arceus origin mark.
Before received integration with in HOME v3.0.0, Pokémon originating from or earlier that were then transferred into Legends: Arceus (via and HOME) received minimum heights and weights (scalar values of 0, as prior to distinct values for height and weight were not generated); following the update, randomized heights and weights will be assigned to them instead, provided they haven't been assigned a size already by being transferred to another Generation VIII or game.
In , as part of its size variation mechanic, XXS and XXL Pokémon each have a 1 in 250 chance to be generated. When one of these extreme-sized Pokémon is obtained and transferred to and then into , both its height and weight scalar values are set to either 0 or 255, depending on whether it was initially XXS or XXL, respectively. This results in the specimen having the minimum or maximum possible in-game height and weight for its species (or form). In contrast, generation of both of these values for a native Pokémon in Legends: Arceus has less than a 1 in 250 million chance to occur—albeit due to a lack of display precision, additional values may also give the minimum and maximum possible measurements depending on the Pokémon species/form.
==See also==
* Pokémon availability
*
Category:Game mechanics