Last Resort is learned by 44 species by level, 118 by tutor and 21 by egg

Effect, in PokéAPI's words

“Can only be used after all of the user’s other moves have been used.”

Who learns it

132 species in all, 8 of 12 games shown

Scarlet and Violet: 49 species

Species	Method	Level
Snorlax	Level up	1
Chingling	Level up	16
Snubbull	Level up	31
Granbull	Level up	35
Phanpy	Level up	37
Plusle	Level up	40
Minun	Level up	40
Aipom	Level up	43
Ambipom	Level up	43
Pachirisu	Level up	45
Fidough	Level up	45
Chansey	Level up	48
Blissey	Level up	48
Minccino	Level up	48
Munchlax	Level up	52
Klefki	Level up	52
Dachsbun	Level up	53
Espathra	Level up	54
Eevee	Level up	55
Vaporeon	Level up	55
Jolteon	Level up	55
Flareon	Level up	55
Espeon	Level up	55
Umbreon	Level up	55
Leafeon	Level up	55
Glaceon	Level up	55
Sylveon	Level up	55
Indeedee	Level up	55
Azelf	Level up	70
Drakloak	Level up	72
Dragapult	Level up	78
Jirachi	Level up	91
Meowth	Egg
Sentret	Egg
Furret	Egg
Igglybuff	Egg
Dunsparce	Egg
Torchic	Egg
Combusken	Egg
Blaziken	Egg
Cinccino	Egg
Yungoos	Egg
Rockruff	Egg
Oranguru	Egg
Skwovet	Egg
Silicobra	Egg
Milcery	Egg
Alcremie	Egg
Quaxly	Egg

Brilliant Diamond and Shining Pearl: 36 species

Species	Method	Level
Snorlax	Level up	1
Donphan	Level up	1
Chimecho	Level up	1
Togekiss	Level up	1
Chingling	Level up	16
Phanpy	Level up	37
Plusle	Level up	40
Minun	Level up	40
Aipom	Level up	43
Ambipom	Level up	43
Pachirisu	Level up	45
Chansey	Level up	48
Togepi	Level up	48
Togetic	Level up	48
Blissey	Level up	48
Kangaskhan	Level up	52
Munchlax	Level up	52
Eevee	Level up	55
Vaporeon	Level up	55
Jolteon	Level up	55
Flareon	Level up	55
Espeon	Level up	55
Umbreon	Level up	55
Leafeon	Level up	55
Glaceon	Level up	55
Azelf	Level up	70
Jirachi	Level up	91
Rattata	Egg
Meowth	Egg
Sentret	Egg
Igglybuff	Egg
Dunsparce	Egg
Torchic	Egg
Skitty	Egg
Glameow	Egg
Happiny	Egg

Sword and Shield: 39 species

Species	Method	Level
Snorlax	Level up	1
Togekiss	Level up	1
Cinccino	Level up	1
Lillipup	Level up	44
Chansey	Level up	48
Togepi	Level up	48
Togetic	Level up	48
Blissey	Level up	48
Minccino	Level up	48
Kangaskhan	Level up	52
Munchlax	Level up	52
Klefki	Level up	52
Eevee	Level up	55
Vaporeon	Level up	55
Jolteon	Level up	55
Flareon	Level up	55
Espeon	Level up	55
Umbreon	Level up	55
Leafeon	Level up	55
Glaceon	Level up	55
Sylveon	Level up	55
Indeedee	Level up	55
Dubwool	Level up	56
Herdier	Level up	60
Audino	Level up	60
Azelf	Level up	70
Stoutland	Level up	70
Drakloak	Level up	72
Dragapult	Level up	78
Jirachi	Level up	91
Meowth	Egg
Igglybuff	Egg
Dunsparce	Egg
Torchic	Egg
Rockruff	Egg
Oranguru	Egg
Skwovet	Egg
Silicobra	Egg
Milcery	Egg

Ultra Sun and Ultra Moon: 118 species

Species	Method	Level
Munchlax	Level up, Tutor	1, 57
Azelf	Level up, Tutor	1, 61
Audino	Level up, Tutor	1, 57
Chingling	Level up, Tutor	16
Lillipup	Level up, Tutor	36
Phanpy	Level up, Tutor	37
Plusle	Level up, Tutor	40
Eevee	Level up, Tutor	41
Vaporeon	Level up, Tutor	41
Jolteon	Level up, Tutor	41
Flareon	Level up, Tutor	41
Espeon	Level up, Tutor	41
Umbreon	Level up, Tutor	41
Leafeon	Level up, Tutor	41
Glaceon	Level up, Tutor	41
Sylveon	Level up, Tutor	41
Herdier	Level up, Tutor	42
Aipom	Level up, Tutor	43
Ambipom	Level up, Tutor	43
Pachirisu	Level up, Tutor	45
Minccino	Level up, Tutor	45
Togepi	Level up, Tutor	49
Togetic	Level up, Tutor	49
Stoutland	Level up, Tutor	51
Jirachi	Level up, Tutor	65
Rattata	Tutor, Egg
Raticate	Tutor
Clefairy	Tutor
Clefable	Tutor
Jigglypuff	Tutor
Wigglytuff	Tutor
Meowth	Tutor, Egg
Persian	Tutor
Farfetch’d	Tutor
Chansey	Tutor
Porygon	Tutor
Snorlax	Tutor
Mew	Tutor
Sentret	Tutor, Egg
Furret	Tutor
Cleffa	Tutor
Igglybuff	Tutor, Egg
Dunsparce	Tutor
Snubbull	Tutor
Granbull	Tutor
Teddiursa	Tutor
Ursaring	Tutor
Donphan	Tutor
Porygon2	Tutor
Stantler	Tutor
Blissey	Tutor
Celebi	Tutor
Torchic	Tutor, Egg
Combusken	Tutor
Blaziken	Tutor
Zigzagoon	Tutor
Linoone	Tutor
Skitty	Tutor, Egg
Delcatty	Tutor
Mawile	Tutor
Minun	Tutor
Spinda	Tutor
Zangoose	Tutor
Castform	Tutor
Kecleon	Tutor
Chimecho	Tutor
Latias	Tutor
Latios	Tutor
Bidoof	Tutor
Bibarel	Tutor
Buneary	Tutor
Lopunny	Tutor
Glameow	Tutor, Egg
Purugly	Tutor
Happiny	Tutor, Egg
Togekiss	Tutor
Porygon-Z	Tutor
Phione	Tutor
Manaphy	Tutor
Darkrai	Tutor
Shaymin	Tutor
Arceus	Tutor
Victini	Tutor
Patrat	Tutor
Watchog	Tutor
Cinccino	Tutor
Deerling	Tutor
Sawsbuck	Tutor
Emolga	Tutor
Keldeo	Tutor
Meloetta	Tutor
Genesect	Tutor
Bunnelby	Tutor
Diggersby	Tutor
Furfrou	Tutor
Hawlucha	Tutor
Dedenne	Tutor
Klefki	Tutor
Diancie	Tutor
Hoopa	Tutor
Yungoos	Tutor, Egg
Gumshoos	Tutor
Cutiefly	Tutor
Ribombee	Tutor
Rockruff	Tutor
Lycanroc	Tutor
Type: Null	Tutor
Silvally	Tutor
Minior	Tutor
Komala	Tutor
Togedemaru	Tutor
Mimikyu	Tutor
Solgaleo	Tutor
Kartana	Tutor
Guzzlord	Tutor
Magearna	Tutor
Marshadow	Tutor
Blacephalon	Tutor

Sun and Moon: 34 species

Species	Method	Level
Munchlax	Level up	1, 57
Azelf	Level up	1, 61
Audino	Level up	1, 57
Chingling	Level up	16
Lillipup	Level up	36
Phanpy	Level up	37
Plusle	Level up	40
Eevee	Level up	41
Vaporeon	Level up	41
Jolteon	Level up	41
Flareon	Level up	41
Espeon	Level up	41
Umbreon	Level up	41
Leafeon	Level up	41
Glaceon	Level up	41
Sylveon	Level up	41
Herdier	Level up	42
Aipom	Level up	43
Ambipom	Level up	43
Pachirisu	Level up	45
Minccino	Level up	45
Togepi	Level up	49
Togetic	Level up	49
Stoutland	Level up	51
Jirachi	Level up	65
Rattata	Egg
Meowth	Egg
Sentret	Egg
Igglybuff	Egg
Torchic	Egg
Skitty	Egg
Glameow	Egg
Happiny	Egg
Yungoos	Egg

Omega Ruby and Alpha Sapphire: 100 species

Species	Method	Level
Munchlax	Level up, Tutor	1, 57
Azelf	Level up, Tutor	1, 61
Audino	Level up, Tutor	1, 53
Chingling	Level up, Tutor	16
Lillipup	Level up, Tutor	36
Phanpy	Level up, Tutor	37
Plusle	Level up, Tutor	40
Eevee	Level up, Tutor	41
Vaporeon	Level up, Tutor	41
Jolteon	Level up, Tutor	41
Flareon	Level up, Tutor	41
Espeon	Level up, Tutor	41
Umbreon	Level up, Tutor	41
Leafeon	Level up, Tutor	41
Glaceon	Level up, Tutor	41
Sylveon	Level up, Tutor	41
Herdier	Level up, Tutor	42
Aipom	Level up, Tutor	43
Ambipom	Level up, Tutor	43
Pachirisu	Level up, Tutor	45
Minccino	Level up, Tutor	45
Togepi	Level up, Tutor	49
Togetic	Level up, Tutor	49
Stoutland	Level up, Tutor	51
Jirachi	Level up, Tutor	65
Rattata	Tutor, Egg
Raticate	Tutor
Clefairy	Tutor
Clefable	Tutor
Jigglypuff	Tutor
Wigglytuff	Tutor
Meowth	Tutor, Egg
Persian	Tutor
Farfetch’d	Tutor
Chansey	Tutor
Porygon	Tutor
Snorlax	Tutor
Mew	Tutor
Sentret	Tutor, Egg
Furret	Tutor
Cleffa	Tutor
Igglybuff	Tutor, Egg
Dunsparce	Tutor
Snubbull	Tutor
Granbull	Tutor
Teddiursa	Tutor
Ursaring	Tutor
Donphan	Tutor
Porygon2	Tutor
Stantler	Tutor
Blissey	Tutor
Celebi	Tutor
Torchic	Tutor, Egg
Combusken	Tutor
Blaziken	Tutor
Zigzagoon	Tutor
Linoone	Tutor
Skitty	Tutor, Egg
Delcatty	Tutor
Mawile	Tutor
Minun	Tutor
Spinda	Tutor
Zangoose	Tutor
Castform	Tutor
Kecleon	Tutor
Chimecho	Tutor
Latias	Tutor
Latios	Tutor
Bidoof	Tutor
Bibarel	Tutor
Buneary	Tutor
Lopunny	Tutor
Glameow	Tutor, Egg
Purugly	Tutor
Happiny	Tutor, Egg
Togekiss	Tutor
Porygon-Z	Tutor
Phione	Tutor
Manaphy	Tutor
Darkrai	Tutor
Shaymin	Tutor
Arceus	Tutor
Victini	Tutor
Patrat	Tutor
Watchog	Tutor
Cinccino	Tutor
Deerling	Tutor
Sawsbuck	Tutor
Emolga	Tutor
Keldeo	Tutor
Meloetta	Tutor
Genesect	Tutor
Bunnelby	Tutor
Diggersby	Tutor
Furfrou	Tutor
Hawlucha	Tutor
Dedenne	Tutor
Klefki	Tutor
Diancie	Tutor
Hoopa	Tutor

X and Y: 33 species

Species	Method	Level
Munchlax	Level up	1, 57
Azelf	Level up	1, 61
Audino	Level up	1, 55
Chingling	Level up	22
Lillipup	Level up	36
Phanpy	Level up	37
Eevee	Level up	41
Vaporeon	Level up	41
Jolteon	Level up	41
Flareon	Level up	41
Espeon	Level up	41
Umbreon	Level up	41
Leafeon	Level up	41
Glaceon	Level up	41
Sylveon	Level up	41
Herdier	Level up	42
Aipom	Level up	43
Ambipom	Level up	43
Pachirisu	Level up	45
Minccino	Level up	45
Togepi	Level up	49
Togetic	Level up	49
Plusle	Level up	50
Stoutland	Level up	51
Jirachi	Level up	65
Rattata	Egg
Meowth	Egg
Sentret	Egg
Igglybuff	Egg
Torchic	Egg
Skitty	Egg
Glameow	Egg
Happiny	Egg

Black 2 and White 2: 91 species

Species	Method	Level
Chingling	Level up, Tutor	22
Lillipup	Level up, Tutor	36
Phanpy	Level up, Tutor	37
Eevee	Level up, Tutor	41
Vaporeon	Level up, Tutor	41
Jolteon	Level up, Tutor	41
Flareon	Level up, Tutor	41
Espeon	Level up, Tutor	41
Umbreon	Level up, Tutor	41
Leafeon	Level up, Tutor	41
Glaceon	Level up, Tutor	41
Herdier	Level up, Tutor	42
Aipom	Level up, Tutor	43
Ambipom	Level up, Tutor	43
Pachirisu	Level up, Tutor	45
Minccino	Level up, Tutor	45
Togepi	Level up, Tutor	49
Togetic	Level up, Tutor	49
Plusle	Level up, Tutor	51
Stoutland	Level up, Tutor	51
Audino	Level up, Tutor	55
Munchlax	Level up, Tutor	57
Azelf	Level up, Tutor	61
Jirachi	Level up, Tutor	65
Rattata	Tutor, Egg
Raticate	Tutor
Clefairy	Tutor
Clefable	Tutor
Jigglypuff	Tutor
Wigglytuff	Tutor
Meowth	Tutor, Egg
Persian	Tutor
Farfetch’d	Tutor
Chansey	Tutor
Porygon	Tutor
Snorlax	Tutor
Mew	Tutor
Sentret	Tutor, Egg
Furret	Tutor
Cleffa	Tutor
Igglybuff	Tutor, Egg
Dunsparce	Tutor
Snubbull	Tutor
Granbull	Tutor
Teddiursa	Tutor
Ursaring	Tutor
Donphan	Tutor
Porygon2	Tutor
Stantler	Tutor
Blissey	Tutor
Celebi	Tutor
Torchic	Tutor, Egg
Combusken	Tutor
Blaziken	Tutor
Zigzagoon	Tutor
Linoone	Tutor
Skitty	Tutor, Egg
Delcatty	Tutor
Mawile	Tutor
Minun	Tutor
Spinda	Tutor
Zangoose	Tutor
Castform	Tutor
Kecleon	Tutor
Chimecho	Tutor
Latias	Tutor
Latios	Tutor
Bidoof	Tutor
Bibarel	Tutor
Buneary	Tutor
Lopunny	Tutor
Glameow	Tutor, Egg
Purugly	Tutor
Happiny	Tutor, Egg
Togekiss	Tutor
Porygon-Z	Tutor
Phione	Tutor
Manaphy	Tutor
Darkrai	Tutor
Shaymin	Tutor
Arceus	Tutor
Victini	Tutor
Patrat	Tutor
Watchog	Tutor
Cinccino	Tutor
Deerling	Tutor
Sawsbuck	Tutor
Emolga	Tutor
Keldeo	Tutor
Meloetta	Tutor
Genesect	Tutor

Changed over time

One change since Generation IV

1. Through Gen IVPower 130140 from Black and White, Generation V