Draco Meteor is learned by 61 species by machine and 58 by tutor

Effect, in PokéAPI's words

“Lowers the user’s Special Attack by two stages after inflicting damage.”

Who learns it

73 species in all, 8 of 12 games shown

Scarlet and Violet: 61 species

Species	Method	Level
Dratini	Machine
Dragonair	Machine
Dragonite	Machine
Mew	Machine
Kingdra	Machine
Vibrava	Machine
Flygon	Machine
Altaria	Machine
Bagon	Machine
Shelgon	Machine
Salamence	Machine
Latias	Machine
Latios	Machine
Rayquaza	Machine
Gible	Machine
Gabite	Machine
Garchomp	Machine
Dialga	Machine
Palkia	Machine
Giratina	Machine
Arceus	Machine
Axew	Machine
Fraxure	Machine
Haxorus	Machine
Deino	Machine
Zweilous	Machine
Hydreigon	Machine
Reshiram	Machine
Zekrom	Machine
Kyurem	Machine
Dragalge	Machine
Goomy	Machine
Sliggoo	Machine
Goodra	Machine
Noibat	Machine
Noivern	Machine
Jangmo-o	Machine
Hakamo-o	Machine
Kommo-o	Machine
Flapple	Machine
Appletun	Machine
Duraludon	Machine
Dreepy	Machine
Drakloak	Machine
Dragapult	Machine
Eternatus	Machine
Regidrago	Machine
Cyclizar	Machine
Tatsugiri	Machine
Frigibax	Machine
Arctibax	Machine
Baxcalibur	Machine
Roaring Moon	Machine
Koraidon	Machine
Miraidon	Machine
Walking Wake	Machine
Dipplin	Machine
Archaludon	Machine
Hydrapple	Machine
Gouging Fire	Machine
Raging Bolt	Machine

Brilliant Diamond and Shining Pearl: 19 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor

Sword and Shield: 57 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor
Dragalge	Tutor
Tyrunt	Tutor
Tyrantrum	Tutor
Goomy	Tutor
Sliggoo	Tutor
Goodra	Tutor
Noibat	Tutor
Noivern	Tutor
Zygarde	Tutor
Silvally	Tutor
Turtonator	Tutor
Drampa	Tutor
Jangmo-o	Tutor
Hakamo-o	Tutor
Kommo-o	Tutor
Guzzlord	Tutor
Naganadel	Tutor
Applin	Tutor
Flapple	Tutor
Appletun	Tutor
Dracozolt	Tutor
Dracovish	Tutor
Duraludon	Tutor
Dreepy	Tutor
Drakloak	Tutor
Dragapult	Tutor
Eternatus	Tutor
Regidrago	Tutor

Ultra Sun and Ultra Moon: 47 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Arceus	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor
Dragalge	Tutor
Tyrunt	Tutor
Tyrantrum	Tutor
Goomy	Tutor
Sliggoo	Tutor
Goodra	Tutor
Noibat	Tutor
Noivern	Tutor
Zygarde	Tutor
Silvally	Tutor
Turtonator	Tutor
Drampa	Tutor
Jangmo-o	Tutor
Hakamo-o	Tutor
Kommo-o	Tutor
Guzzlord	Tutor
Naganadel	Tutor

Sun and Moon: 46 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Arceus	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor
Dragalge	Tutor
Tyrunt	Tutor
Tyrantrum	Tutor
Goomy	Tutor
Sliggoo	Tutor
Goodra	Tutor
Noibat	Tutor
Noivern	Tutor
Zygarde	Tutor
Silvally	Tutor
Turtonator	Tutor
Drampa	Tutor
Jangmo-o	Tutor
Hakamo-o	Tutor
Kommo-o	Tutor
Guzzlord	Tutor

Omega Ruby and Alpha Sapphire: 39 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Arceus	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor
Dragalge	Tutor
Tyrunt	Tutor
Tyrantrum	Tutor
Goomy	Tutor
Sliggoo	Tutor
Goodra	Tutor
Noibat	Tutor
Noivern	Tutor
Zygarde	Tutor

X and Y: 39 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Arceus	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor
Dragalge	Tutor
Tyrunt	Tutor
Tyrantrum	Tutor
Goomy	Tutor
Sliggoo	Tutor
Goodra	Tutor
Noibat	Tutor
Noivern	Tutor
Zygarde	Tutor

Black 2 and White 2: 30 species

Species	Method	Level
Dratini	Tutor
Dragonair	Tutor
Dragonite	Tutor
Kingdra	Tutor
Vibrava	Tutor
Flygon	Tutor
Altaria	Tutor
Bagon	Tutor
Shelgon	Tutor
Salamence	Tutor
Latias	Tutor
Latios	Tutor
Rayquaza	Tutor
Gible	Tutor
Gabite	Tutor
Garchomp	Tutor
Dialga	Tutor
Palkia	Tutor
Giratina	Tutor
Arceus	Tutor
Axew	Tutor
Fraxure	Tutor
Haxorus	Tutor
Druddigon	Tutor
Deino	Tutor
Zweilous	Tutor
Hydreigon	Tutor
Reshiram	Tutor
Zekrom	Tutor
Kyurem	Tutor

Changed over time

One change since Generation IV

1. Through Gen VPower 140130 from X and Y, Generation VI