Fire Blast is learned by 23 species by level and 183 by machine

Effect, in PokéAPI's words

“Has a chance to burn the target.”

Who learns it

183 species in all, 5 of 25 games shown

Scarlet and Violet: 138 species

Species	Method	Level
Fuecoco	Level up, Machine	36
Crocalor	Level up, Machine	47
Magby	Level up, Machine	48
Fennekin	Level up, Machine	48
Vulpix	Level up, Machine	52
Magmar	Level up, Machine	58
Magmortar	Level up, Machine	58
Skeledirge	Level up, Machine	58
Braixen	Level up, Machine	59
Gouging Fire	Level up, Machine	63
Reshiram	Level up, Machine	64
Volcarona	Level up, Machine	70
Entei	Level up, Machine	72
Ho-Oh	Level up, Machine	72
Groudon	Level up, Machine	72
Delphox	Level up, Machine	74
Charmander	Machine
Charmeleon	Machine
Charizard	Machine
Clefairy	Machine
Clefable	Machine
Ninetales	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Growlithe	Machine
Arcanine	Machine
Geodude	Machine
Graveler	Machine
Golem	Machine
Slowpoke	Machine
Slowbro	Machine
Grimer	Machine
Muk	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Tauros	Machine
Gyarados	Machine
Flareon	Machine
Snorlax	Machine
Moltres	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Cyndaquil	Machine
Quilava	Machine
Typhlosion	Machine
Cleffa	Machine
Igglybuff	Machine
Slowking	Machine
Dunsparce	Machine
Snubbull	Machine
Granbull	Machine
Slugma	Machine
Magcargo	Machine
Houndour	Machine
Houndoom	Machine
Blissey	Machine
Tyranitar	Machine
Torchic	Machine
Combusken	Machine
Blaziken	Machine
Slakoth	Machine
Vigoroth	Machine
Slaking	Machine
Numel	Machine
Camerupt	Machine
Torkoal	Machine
Flygon	Machine
Altaria	Machine
Zangoose	Machine
Bagon	Machine
Shelgon	Machine
Salamence	Machine
Rayquaza	Machine
Chimchar	Machine
Monferno	Machine
Infernape	Machine
Cranidos	Machine
Rampardos	Machine
Shieldon	Machine
Bastiodon	Machine
Stunky	Machine
Skuntank	Machine
Gible	Machine
Gabite	Machine
Garchomp	Machine
Munchlax	Machine
Rhyperior	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Heatran	Machine
Arceus	Machine
Tepig	Machine
Pignite	Machine
Emboar	Machine
Litwick	Machine
Lampent	Machine
Chandelure	Machine
Hydreigon	Machine
Larvesta	Machine
Fletchinder	Machine
Talonflame	Machine
Litleo	Machine
Pyroar	Machine
Goodra	Machine
Volcanion	Machine
Litten	Machine
Torracat	Machine
Incineroar	Machine
Salandit	Machine
Salazzle	Machine
Solgaleo	Machine
Scorbunny	Machine
Raboot	Machine
Cinderace	Machine
Carkol	Machine
Coalossal	Machine
Drakloak	Machine
Dragapult	Machine
Eternatus	Machine
Charcadet	Machine
Armarouge	Machine
Ceruledge	Machine
Scovillain	Machine
Dudunsparce	Machine
Scream Tail	Machine
Iron Jugulis	Machine
Iron Moth	Machine
Iron Thorns	Machine
Chi-Yu	Machine
Roaring Moon	Machine
Koraidon	Machine

Legends Arceus: 7 species

Species	Method	Level
Ponyta	Level up	29
Rapidash	Level up	29
Magmar	Level up	43
Magby	Level up	43
Magmortar	Level up	43
Vulpix	Level up	47
Ninetales	Level up	47

Brilliant Diamond and Shining Pearl: 116 species

Species	Method	Level
Ninetales	Level up, Machine	1
Castform	Level up, Machine	35
Magby	Level up, Machine	48
Ponyta	Level up, Machine	50
Vulpix	Level up, Machine	56
Rapidash	Level up, Machine	56
Magmar	Level up, Machine	58
Magmortar	Level up, Machine	58
Entei	Level up, Machine	72
Ho-Oh	Level up, Machine	72
Groudon	Level up, Machine	72
Charmander	Machine
Charmeleon	Machine
Charizard	Machine
Nidoqueen	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Growlithe	Machine
Arcanine	Machine
Machop	Machine
Machoke	Machine
Machamp	Machine
Geodude	Machine
Graveler	Machine
Golem	Machine
Slowpoke	Machine
Slowbro	Machine
Grimer	Machine
Muk	Machine
Cubone	Machine
Marowak	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Tauros	Machine
Gyarados	Machine
Flareon	Machine
Aerodactyl	Machine
Snorlax	Machine
Moltres	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Cyndaquil	Machine
Quilava	Machine
Typhlosion	Machine
Cleffa	Machine
Igglybuff	Machine
Togepi	Machine
Togetic	Machine
Slowking	Machine
Dunsparce	Machine
Snubbull	Machine
Granbull	Machine
Slugma	Machine
Magcargo	Machine
Remoraid	Machine
Octillery	Machine
Houndour	Machine
Houndoom	Machine
Blissey	Machine
Tyranitar	Machine
Torchic	Machine
Combusken	Machine
Blaziken	Machine
Slakoth	Machine
Vigoroth	Machine
Slaking	Machine
Whismur	Machine
Loudred	Machine
Exploud	Machine
Mawile	Machine
Aggron	Machine
Numel	Machine
Camerupt	Machine
Torkoal	Machine
Flygon	Machine
Altaria	Machine
Zangoose	Machine
Solrock	Machine
Kecleon	Machine
Absol	Machine
Bagon	Machine
Shelgon	Machine
Salamence	Machine
Rayquaza	Machine
Chimchar	Machine
Monferno	Machine
Infernape	Machine
Cranidos	Machine
Rampardos	Machine
Shieldon	Machine
Bastiodon	Machine
Stunky	Machine
Skuntank	Machine
Happiny	Machine
Gible	Machine
Gabite	Machine
Garchomp	Machine
Munchlax	Machine
Lickilicky	Machine
Rhyperior	Machine
Togekiss	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Heatran	Machine

Sword and Shield: 126 species

Species	Method	Level
Ninetales	Level up, Machine	1
Magby	Level up, Machine	48
Ponyta	Level up, Machine	50
Vulpix	Level up, Machine	56
Rapidash	Level up, Machine	56
Magmar	Level up, Machine	58
Magmortar	Level up, Machine	58
Reshiram	Level up, Machine	64
Blacephalon	Level up, Machine	65
Volcarona	Level up, Machine	70
Entei	Level up, Machine	72
Ho-Oh	Level up, Machine	72
Groudon	Level up, Machine	72
Charmander	Machine
Charmeleon	Machine
Charizard	Machine
Nidoqueen	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Growlithe	Machine
Arcanine	Machine
Machop	Machine
Machoke	Machine
Machamp	Machine
Slowpoke	Machine
Slowbro	Machine
Cubone	Machine
Marowak	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Tauros	Machine
Gyarados	Machine
Flareon	Machine
Aerodactyl	Machine
Snorlax	Machine
Moltres	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine
Cleffa	Machine
Igglybuff	Machine
Togepi	Machine
Togetic	Machine
Slowking	Machine
Dunsparce	Machine
Remoraid	Machine
Octillery	Machine
Blissey	Machine
Tyranitar	Machine
Torchic	Machine
Combusken	Machine
Blaziken	Machine
Whismur	Machine
Loudred	Machine
Exploud	Machine
Mawile	Machine
Aggron	Machine
Torkoal	Machine
Flygon	Machine
Altaria	Machine
Solrock	Machine
Absol	Machine
Bagon	Machine
Shelgon	Machine
Salamence	Machine
Rayquaza	Machine
Stunky	Machine
Skuntank	Machine
Happiny	Machine
Gible	Machine
Gabite	Machine
Garchomp	Machine
Munchlax	Machine
Lickilicky	Machine
Rhyperior	Machine
Togekiss	Machine
Azelf	Machine
Dialga	Machine
Palkia	Machine
Heatran	Machine
Victini	Machine
Audino	Machine
Darumaka	Machine
Darmanitan	Machine
Litwick	Machine
Lampent	Machine
Chandelure	Machine
Heatmor	Machine
Hydreigon	Machine
Larvesta	Machine
Fletchinder	Machine
Talonflame	Machine
Goodra	Machine
Pumpkaboo	Machine
Gourgeist	Machine
Volcanion	Machine
Litten	Machine
Torracat	Machine
Incineroar	Machine
Salandit	Machine
Salazzle	Machine
Turtonator	Machine
Drampa	Machine
Solgaleo	Machine
Celesteela	Machine
Guzzlord	Machine
Naganadel	Machine
Scorbunny	Machine
Raboot	Machine
Cinderace	Machine
Carkol	Machine
Coalossal	Machine
Centiskorch	Machine
Dracozolt	Machine
Drakloak	Machine
Dragapult	Machine

Let's Go Pikachu and Let's Go Eevee: 46 species

Species	Method	Level
Vulpix	Level up, Machine	31
Ponyta	Level up, Machine	38
Rapidash	Level up, Machine	38
Magmar	Level up, Machine	50
Charmander	Machine
Charmeleon	Machine
Charizard	Machine
Nidoqueen	Machine
Nidoking	Machine
Clefairy	Machine
Clefable	Machine
Ninetales	Machine
Jigglypuff	Machine
Wigglytuff	Machine
Growlithe	Machine
Arcanine	Machine
Machop	Machine
Machoke	Machine
Machamp	Machine
Geodude	Machine
Graveler	Machine
Golem	Machine
Slowpoke	Machine
Slowbro	Machine
Grimer	Machine
Muk	Machine
Cubone	Machine
Marowak	Machine
Lickitung	Machine
Koffing	Machine
Weezing	Machine
Rhyhorn	Machine
Rhydon	Machine
Chansey	Machine
Kangaskhan	Machine
Tauros	Machine
Gyarados	Machine
Flareon	Machine
Aerodactyl	Machine
Snorlax	Machine
Moltres	Machine
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mewtwo	Machine
Mew	Machine

Changed over time

2 changes since Generation I

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