Thunder is learned by 31 species by level and 223 by machine

Effect, in PokéAPI's words

“Has a chance to paralyze the target.”

Who learns it

223 species in all, 5 of 25 games shown

Scarlet and Violet: 162 species

Species	Method	Level
Raichu	Level up, Machine	1
Plusle	Level up, Machine	43
Minun	Level up, Machine	43
Pikachu	Level up, Machine	44
Mareep	Level up, Machine	46
Elekid	Level up, Machine	48
Pachirisu	Level up, Machine	49
Jolteon	Level up, Machine	50
Zapdos	Level up, Machine	55
Flaaffy	Level up, Machine	56
Electabuzz	Level up, Machine	58
Electivire	Level up, Machine	58
Dedenne	Level up, Machine	60
Ampharos	Level up, Machine	62
Zekrom	Level up, Machine	64
Thundurus	Level up, Machine	65
Raikou	Level up, Machine	72
Miraidon	Level up, Machine	84
Raging Bolt	Level up, Machine	91
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Meowth	Machine
Persian	Machine
Primeape	Machine
Magnemite	Machine
Magneton	Machine
Grimer	Machine
Muk	Machine
Gastly	Machine
Haunter	Machine
Gengar	Machine
Voltorb	Machine
Electrode	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Tauros	Machine
Gyarados	Machine
Lapras	Machine
Porygon	Machine
Snorlax	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Sentret	Machine
Furret	Machine
Chinchou	Machine
Lanturn	Machine
Pichu	Machine
Aipom	Machine
Misdreavus	Machine
Girafarig	Machine
Dunsparce	Machine
Snubbull	Machine
Granbull	Machine
Porygon2	Machine
Stantler	Machine
Blissey	Machine
Tyranitar	Machine
Lugia	Machine
Ho-Oh	Machine
Slakoth	Machine
Vigoroth	Machine
Slaking	Machine
Nosepass	Machine
Volbeat	Machine
Illumise	Machine
Zangoose	Machine
Shuppet	Machine
Banette	Machine
Regirock	Machine
Regice	Machine
Registeel	Machine
Latias	Machine
Latios	Machine
Kyogre	Machine
Groudon	Machine
Rayquaza	Machine
Jirachi	Machine
Deoxys	Machine
Shinx	Machine
Luxio	Machine
Luxray	Machine
Cranidos	Machine
Rampardos	Machine
Shieldon	Machine
Bastiodon	Machine
Ambipom	Machine
Drifloon	Machine
Drifblim	Machine
Mismagius	Machine
Munchlax	Machine
Magnezone	Machine
Rhyperior	Machine
Porygon-Z	Machine
Probopass	Machine
Froslass	Machine
Rotom	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Regigigas	Machine
Giratina	Machine
Cresselia	Machine
Darkrai	Machine
Arceus	Machine
Blitzle	Machine
Zebstrika	Machine
Cinccino	Machine
Solosis	Machine
Duosion	Machine
Reuniclus	Machine
Joltik	Machine
Galvantula	Machine
Eelektrik	Machine
Eelektross	Machine
Meloetta	Machine
Dragalge	Machine
Sliggoo	Machine
Goodra	Machine
Charjabug	Machine
Vikavolt	Machine
Oranguru	Machine
Mimikyu	Machine
Solgaleo	Machine
Lunala	Machine
Toxtricity	Machine
Perrserker	Machine
Pincurchin	Machine
Morpeko	Machine
Duraludon	Machine
Drakloak	Machine
Dragapult	Machine
Regieleki	Machine
Wyrdeer	Machine
Pawmi	Machine
Pawmo	Machine
Pawmot	Machine
Tadbulb	Machine
Bellibolt	Machine
Wattrel	Machine
Kilowattrel	Machine
Annihilape	Machine
Farigiraf	Machine
Dudunsparce	Machine
Scream Tail	Machine
Flutter Mane	Machine
Sandy Shocks	Machine
Iron Treads	Machine
Iron Hands	Machine
Iron Thorns	Machine
Gholdengo	Machine
Archaludon	Machine
Terapagos	Machine

Legends Arceus: 15 species

Species	Method	Level
Magnemite	Level up	43
Magneton	Level up	43
Electabuzz	Level up	43
Elekid	Level up	43
Magnezone	Level up	43
Electivire	Level up	43
Rotom	Level up	43
Pikachu	Level up	47
Raichu	Level up	47
Pichu	Level up	47
Shinx	Level up	47
Luxio	Level up	47
Luxray	Level up	47
Pachirisu	Level up	47
Thundurus	Level up	47

Brilliant Diamond and Shining Pearl: 134 species

Species	Method	Level
Raichu	Level up, Machine	1
Plusle	Level up, Machine	43
Minun	Level up, Machine	43
Pikachu	Level up, Machine	44
Electrike	Level up, Machine	44
Mareep	Level up, Machine	46
Elekid	Level up, Machine	48
Pachirisu	Level up, Machine	49
Jolteon	Level up, Machine	50
Manectric	Level up, Machine	54
Zapdos	Level up, Machine	55
Flaaffy	Level up, Machine	56
Electabuzz	Level up, Machine	58
Electivire	Level up, Machine	58
Ampharos	Level up, Machine	62
Raikou	Level up, Machine	72
Rattata	Machine
Raticate	Machine
Nidoran♀	Machine
Nidorina	Machine
Nidoqueen	Machine
Nidoran♂	Machine
Nidorino	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Meowth	Machine
Persian	Machine
Mankey	Machine
Primeape	Machine
Magnemite	Machine
Magneton	Machine
Grimer	Machine
Muk	Machine
Gengar	Machine
Voltorb	Machine
Electrode	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Staryu	Machine
Starmie	Machine
Mr. Mime	Machine
Tauros	Machine
Gyarados	Machine
Lapras	Machine
Porygon	Machine
Snorlax	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Furret	Machine
Chinchou	Machine
Lanturn	Machine
Pichu	Machine
Aipom	Machine
Misdreavus	Machine
Girafarig	Machine
Dunsparce	Machine
Snubbull	Machine
Granbull	Machine
Porygon2	Machine
Stantler	Machine
Miltank	Machine
Blissey	Machine
Tyranitar	Machine
Lugia	Machine
Ho-Oh	Machine
Zigzagoon	Machine
Linoone	Machine
Slakoth	Machine
Vigoroth	Machine
Slaking	Machine
Nosepass	Machine
Skitty	Machine
Delcatty	Machine
Aggron	Machine
Volbeat	Machine
Illumise	Machine
Zangoose	Machine
Castform	Machine
Kecleon	Machine
Shuppet	Machine
Banette	Machine
Absol	Machine
Regirock	Machine
Regice	Machine
Registeel	Machine
Latias	Machine
Latios	Machine
Kyogre	Machine
Groudon	Machine
Rayquaza	Machine
Jirachi	Machine
Bidoof	Machine
Bibarel	Machine
Shinx	Machine
Luxio	Machine
Luxray	Machine
Cranidos	Machine
Rampardos	Machine
Shieldon	Machine
Bastiodon	Machine
Ambipom	Machine
Drifloon	Machine
Drifblim	Machine
Lopunny	Machine
Mismagius	Machine
Glameow	Machine
Purugly	Machine
Mime Jr.	Machine
Munchlax	Machine
Magnezone	Machine
Lickilicky	Machine
Rhyperior	Machine
Porygon-Z	Machine
Probopass	Machine
Froslass	Machine
Rotom	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Regigigas	Machine
Giratina	Machine

Sword and Shield: 140 species

Species	Method	Level
Raichu	Level up, Machine	1
Heliolisk	Level up, Machine	1
Pikachu	Level up, Machine	44
Electrike	Level up, Machine	44
Helioptile	Level up, Machine	44
Elekid	Level up, Machine	48
Jolteon	Level up, Machine	50
Manectric	Level up, Machine	54
Zapdos	Level up, Machine	55
Electabuzz	Level up, Machine	58
Electivire	Level up, Machine	58
Dedenne	Level up, Machine	60
Zekrom	Level up, Machine	64
Thundurus	Level up, Machine	65
Raikou	Level up, Machine	72
Nidoran♀	Machine
Nidorina	Machine
Nidoqueen	Machine
Nidoran♂	Machine
Nidorino	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Meowth	Machine
Persian	Machine
Magnemite	Machine
Magneton	Machine
Gengar	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Staryu	Machine
Starmie	Machine
Mr. Mime	Machine
Tauros	Machine
Gyarados	Machine
Lapras	Machine
Porygon	Machine
Snorlax	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Chinchou	Machine
Lanturn	Machine
Pichu	Machine
Dunsparce	Machine
Porygon2	Machine
Miltank	Machine
Blissey	Machine
Tyranitar	Machine
Lugia	Machine
Ho-Oh	Machine
Zigzagoon	Machine
Linoone	Machine
Aggron	Machine
Absol	Machine
Regirock	Machine
Regice	Machine
Registeel	Machine
Latias	Machine
Latios	Machine
Kyogre	Machine
Groudon	Machine
Rayquaza	Machine
Jirachi	Machine
Shinx	Machine
Luxio	Machine
Luxray	Machine
Drifloon	Machine
Drifblim	Machine
Lopunny	Machine
Mime Jr.	Machine
Munchlax	Machine
Magnezone	Machine
Lickilicky	Machine
Rhyperior	Machine
Porygon-Z	Machine
Froslass	Machine
Rotom	Machine
Uxie	Machine
Mesprit	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Regigigas	Machine
Giratina	Machine
Victini	Machine
Stoutland	Machine
Audino	Machine
Cinccino	Machine
Solosis	Machine
Duosion	Machine
Reuniclus	Machine
Emolga	Machine
Galvantula	Machine
Ferrothorn	Machine
Klinklang	Machine
Stunfisk	Machine
Genesect	Machine
Aromatisse	Machine
Slurpuff	Machine
Dragalge	Machine
Aurorus	Machine
Goodra	Machine
Xerneas	Machine
Vikavolt	Machine
Oranguru	Machine
Togedemaru	Machine
Mimikyu	Machine
Drampa	Machine
Tapu Koko	Machine
Tapu Lele	Machine
Solgaleo	Machine
Lunala	Machine
Nihilego	Machine
Xurkitree	Machine
Zeraora	Machine
Melmetal	Machine
Yamper	Machine
Boltund	Machine
Toxtricity	Machine
Obstagoon	Machine
Perrserker	Machine
Mr. Rime	Machine
Pincurchin	Machine
Morpeko	Machine
Dracozolt	Machine
Arctozolt	Machine
Duraludon	Machine
Drakloak	Machine
Dragapult	Machine
Regieleki	Machine

Let's Go Pikachu and Let's Go Eevee: 51 species

Species	Method	Level
Pikachu	Level up, Machine	30
Jolteon	Level up, Machine	31
Magnemite	Level up, Machine	44
Electabuzz	Level up, Machine	50
Magneton	Level up, Machine	56
Zapdos	Level up, Machine	64
Rattata	Machine
Raticate	Machine
Raichu	Machine
Nidoran♀	Machine
Nidorina	Machine
Nidoqueen	Machine
Nidoran♂	Machine
Nidorino	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Meowth	Machine
Persian	Machine
Mankey	Machine
Primeape	Machine
Grimer	Machine
Muk	Machine
Gastly	Machine
Haunter	Machine
Gengar	Machine
Voltorb	Machine
Electrode	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Staryu	Machine
Starmie	Machine
Mr. Mime	Machine
Tauros	Machine
Gyarados	Machine
Lapras	Machine
Porygon	Machine
Snorlax	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Melmetal	Machine

Changed over time

2 changes since Generation I

1. Through Gen IEffect chance 10%30% from Gold and Silver, Generation II
2. Through Gen VPower 120110 from X and Y, Generation VI