Drain Punch is learned by 8 species by level, 137 by machine, 94 by tutor and 6 by egg

Effect, in PokéAPI's words

“Drains half the damage inflicted to heal the user.”

Who learns it

138 species in all, 8 of 13 games shown

Scarlet and Violet: 100 species

Species	Method	Level
Hitmonchan	Level up, Machine	Evolve
Koraidon	Level up, Machine	21
Mienfoo	Level up, Machine	35
Mienshao	Level up, Machine	35
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Mankey	Machine
Primeape	Machine
Poliwrath	Machine
Slowbro	Machine
Grimer	Machine
Muk	Machine
Gengar	Machine
Drowzee	Machine
Hypno	Machine
Chansey	Machine
Mewtwo	Machine
Mew	Machine
Bellossom	Machine
Sudowoodo	Machine
Quagsire	Machine
Slowking	Machine
Blissey	Machine
Treecko	Machine
Grovyle	Machine
Sceptile	Machine
Lombre	Machine
Ludicolo	Machine
Shroomish	Machine
Breloom	Machine
Vigoroth	Machine
Slaking	Machine
Makuhita	Machine
Hariyama	Machine
Sableye	Machine
Meditite	Machine
Medicham	Machine
Grumpig	Machine
Cacnea	Machine
Cacturne	Machine
Regirock	Machine
Jirachi	Machine
Deoxys	Machine
Monferno	Machine
Infernape	Machine
Riolu	Machine
Lucario	Machine
Croagunk	Machine
Toxicroak	Machine
Gallade	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Regigigas	Machine
Darkrai	Machine
Pignite	Machine
Emboar	Machine
Timburr	Machine
Gurdurr	Machine
Conkeldurr	Machine
Scraggy	Machine
Scrafty	Machine
Reuniclus	Machine
Eelektross	Machine
Golett	Machine
Golurk	Machine
Meloetta	Machine
Chespin	Machine
Quilladin	Machine
Chesnaught	Machine
Hawlucha	Machine
Trevenant	Machine
Hoopa	Machine
Incineroar	Machine
Crabrawler	Machine
Crabominable	Machine
Passimian	Machine
Mimikyu	Machine
Hakamo-o	Machine
Kommo-o	Machine
Grookey	Machine
Thwackey	Machine
Rillaboom	Machine
Toxtricity	Machine
Impidimp	Machine
Morgrem	Machine
Grimmsnarl	Machine
Alcremie	Machine
Indeedee	Machine
Urshifu	Machine
Zarude	Machine
Ursaluna	Machine
Palafin	Machine
Annihilape	Machine
Scream Tail	Machine
Iron Hands	Machine
Iron Valiant	Machine
Okidogi	Machine

Legends Arceus: 1 species

Species	Method	Level
Machamp	Level up	30

Brilliant Diamond and Shining Pearl: 58 species

Species	Method	Level
Hitmonchan	Level up, Machine	Evolve, 1
Breloom	Level up, Machine	39
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Gloom	Machine
Vileplume	Machine
Poliwrath	Machine
Abra	Machine
Kadabra	Machine
Alakazam	Machine
Slowbro	Machine
Gengar	Machine
Drowzee	Machine
Hypno	Machine
Chansey	Machine
Kangaskhan	Machine
Mr. Mime	Machine
Jynx	Machine
Mewtwo	Machine
Mew	Machine
Ledyba	Machine
Ledian	Machine
Togetic	Machine
Bellossom	Machine
Slowking	Machine
Blissey	Machine
Treecko	Machine
Grovyle	Machine
Sceptile	Machine
Lombre	Machine
Ludicolo	Machine
Shroomish	Machine
Sableye	Machine
Meditite	Machine
Medicham	Machine
Grumpig	Machine
Spinda	Machine
Cacnea	Machine
Cacturne	Machine
Kecleon	Machine
Regirock	Machine
Jirachi	Machine
Buneary	Machine
Lopunny	Machine
Mime Jr.	Machine
Happiny	Machine
Riolu	Machine
Lucario	Machine
Croagunk	Machine
Toxicroak	Machine
Togekiss	Machine
Gallade	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Regigigas	Machine

Sword and Shield: 92 species

Species	Method	Level
Hitmonchan	Level up, Machine	Evolve, 1
Seismitoad	Level up, Machine	Evolve, 1
Mienfoo	Level up, Machine	35
Mienshao	Level up, Machine	35
Marshadow	Level up, Machine	54
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Gloom	Machine
Vileplume	Machine
Poliwrath	Machine
Abra	Machine
Kadabra	Machine
Alakazam	Machine
Slowbro	Machine
Gengar	Machine
Chansey	Machine
Kangaskhan	Machine
Mr. Mime	Machine
Jynx	Machine
Mewtwo	Machine
Mew	Machine
Togetic	Machine
Bellossom	Machine
Slowking	Machine
Blissey	Machine
Treecko	Machine
Grovyle	Machine
Sceptile	Machine
Lombre	Machine
Ludicolo	Machine
Sableye	Machine
Regirock	Machine
Jirachi	Machine
Buneary	Machine
Lopunny	Machine
Mime Jr.	Machine
Happiny	Machine
Riolu	Machine
Lucario	Machine
Croagunk	Machine
Toxicroak	Machine
Togekiss	Machine
Gallade	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Regigigas	Machine
Audino	Machine
Timburr	Machine
Gurdurr	Machine
Conkeldurr	Machine
Maractus	Machine
Scraggy	Machine
Scrafty	Machine
Trubbish	Machine
Garbodor	Machine
Reuniclus	Machine
Accelgor	Machine
Golett	Machine
Golurk	Machine
Heatmor	Machine
Pancham	Machine
Pangoro	Machine
Aromatisse	Machine
Slurpuff	Machine
Hawlucha	Machine
Trevenant	Machine
Incineroar	Machine
Shiinotic	Machine
Bewear	Machine
Passimian	Machine
Mimikyu	Machine
Hakamo-o	Machine
Kommo-o	Machine
Buzzwole	Machine
Guzzlord	Machine
Zeraora	Machine
Grookey	Machine
Thwackey	Machine
Rillaboom	Machine
Toxtricity	Machine
Grapploct	Machine
Impidimp	Machine
Morgrem	Machine
Grimmsnarl	Machine
Mr. Rime	Machine
Alcremie	Machine
Indeedee	Machine
Urshifu	Machine
Zarude	Machine

Ultra Sun and Ultra Moon: 94 species

Species	Method	Level
Marshadow	Level up, Tutor	1
Mienfoo	Level up, Tutor	33
Mienshao	Level up, Tutor	33
Seismitoad	Level up, Tutor	44
Clefairy	Tutor
Clefable	Tutor
Jigglypuff	Tutor
Wigglytuff	Tutor
Gloom	Tutor
Vileplume	Tutor
Abra	Tutor
Kadabra	Tutor
Alakazam	Tutor
Slowbro	Tutor
Gengar	Tutor
Drowzee	Tutor
Hypno	Tutor
Hitmonchan	Tutor
Chansey	Tutor
Kangaskhan	Tutor
Mr. Mime	Tutor
Jynx	Tutor
Mewtwo	Tutor
Mew	Tutor
Ledyba	Tutor, Egg
Ledian	Tutor
Togetic	Tutor
Bellossom	Tutor
Slowking	Tutor
Blissey	Tutor
Treecko	Tutor
Grovyle	Tutor
Sceptile	Tutor
Lombre	Tutor
Ludicolo	Tutor
Shroomish	Tutor, Egg
Breloom	Tutor
Meditite	Tutor, Egg
Medicham	Tutor
Grumpig	Tutor
Spinda	Tutor
Cacnea	Tutor
Cacturne	Tutor
Kecleon	Tutor
Regirock	Tutor
Jirachi	Tutor
Deoxys	Tutor
Buneary	Tutor
Lopunny	Tutor
Mime Jr.	Tutor
Happiny	Tutor
Riolu	Tutor
Lucario	Tutor
Croagunk	Tutor, Egg
Toxicroak	Tutor
Togekiss	Tutor
Gallade	Tutor
Regigigas	Tutor
Darkrai	Tutor
Audino	Tutor
Timburr	Tutor, Egg
Gurdurr	Tutor
Conkeldurr	Tutor
Maractus	Tutor
Scraggy	Tutor, Egg
Scrafty	Tutor
Trubbish	Tutor
Garbodor	Tutor
Reuniclus	Tutor
Eelektross	Tutor
Golett	Tutor
Golurk	Tutor
Meloetta	Tutor
Chespin	Tutor
Quilladin	Tutor
Chesnaught	Tutor
Pancham	Tutor
Pangoro	Tutor
Aromatisse	Tutor
Slurpuff	Tutor
Hawlucha	Tutor
Trevenant	Tutor
Hoopa	Tutor
Incineroar	Tutor
Crabrawler	Tutor
Crabominable	Tutor
Bewear	Tutor
Passimian	Tutor
Mimikyu	Tutor
Hakamo-o	Tutor
Kommo-o	Tutor
Buzzwole	Tutor
Guzzlord	Tutor
Zeraora	Tutor

Sun and Moon: 10 species

Species	Method	Level
Marshadow	Level up	1
Mienfoo	Level up	33
Mienshao	Level up	33
Seismitoad	Level up	44
Ledyba	Egg
Shroomish	Egg
Meditite	Egg
Croagunk	Egg
Timburr	Egg
Scraggy	Egg

Omega Ruby and Alpha Sapphire: 82 species

Species	Method	Level
Mienfoo	Level up, Tutor	33
Mienshao	Level up, Tutor	33
Seismitoad	Level up, Tutor	44
Clefairy	Tutor
Clefable	Tutor
Jigglypuff	Tutor
Wigglytuff	Tutor
Gloom	Tutor
Vileplume	Tutor
Abra	Tutor
Kadabra	Tutor
Alakazam	Tutor
Slowbro	Tutor
Gengar	Tutor
Drowzee	Tutor
Hypno	Tutor
Hitmonchan	Tutor
Chansey	Tutor
Kangaskhan	Tutor
Mr. Mime	Tutor
Jynx	Tutor
Mewtwo	Tutor
Mew	Tutor
Ledyba	Tutor, Egg
Ledian	Tutor
Togetic	Tutor
Bellossom	Tutor
Slowking	Tutor
Blissey	Tutor
Treecko	Tutor
Grovyle	Tutor
Sceptile	Tutor
Lombre	Tutor
Ludicolo	Tutor
Shroomish	Tutor, Egg
Breloom	Tutor
Meditite	Tutor, Egg
Medicham	Tutor
Grumpig	Tutor
Spinda	Tutor
Cacnea	Tutor
Cacturne	Tutor
Kecleon	Tutor
Regirock	Tutor
Jirachi	Tutor
Deoxys	Tutor
Buneary	Tutor
Lopunny	Tutor
Mime Jr.	Tutor
Happiny	Tutor
Riolu	Tutor
Lucario	Tutor
Croagunk	Tutor, Egg
Toxicroak	Tutor
Togekiss	Tutor
Gallade	Tutor
Regigigas	Tutor
Darkrai	Tutor
Audino	Tutor
Timburr	Tutor, Egg
Gurdurr	Tutor
Conkeldurr	Tutor
Maractus	Tutor
Scraggy	Tutor, Egg
Scrafty	Tutor
Trubbish	Tutor
Garbodor	Tutor
Reuniclus	Tutor
Eelektross	Tutor
Golett	Tutor
Golurk	Tutor
Meloetta	Tutor
Chespin	Tutor
Quilladin	Tutor
Chesnaught	Tutor
Pancham	Tutor
Pangoro	Tutor
Aromatisse	Tutor
Slurpuff	Tutor
Hawlucha	Tutor
Trevenant	Tutor
Hoopa	Tutor

X and Y: 9 species

Species	Method	Level
Mienfoo	Level up	33
Mienshao	Level up	33
Seismitoad	Level up	44
Ledyba	Egg
Shroomish	Egg
Meditite	Egg
Croagunk	Egg
Timburr	Egg
Scraggy	Egg

Changed over time

2 changes since Generation IV

1. Through Gen IVPower 6075 from Black and White, Generation V
2. Through Gen IVPP 510 from Black and White, Generation V