TM082

TM082 teaches a move to a compatible Pokémon. TM082 is:

Game descriptions

Diamond, Pearl:Eterna Forest (northern exterior - requires Cut)
HeartGold, SoulSilver:Goldenrod City (Department Store basement)
Black, White:Opelucid City (Gym)
Black 2, White 2:Opelucid City (Gym - defeat Drayden)
X, Y:Lumiose City (Lumiose Museum 1F, west)
O.Ruby, A.Sapphire:Mauville City (PokéMart - $10,000)
Sun, Moon:Konikoni City (TM Shop - $10,000)
Ultra Sun, Ultra Moon:Route 12 (south, defeat all trainers and Collector)
Sword, Shield:Hulbury
B.Diamond, S.Pearl:Eterna Forest (eastern bypass - requires Cut) Grand Underground (from vendor)
Scarlet, Violet:South Province (Area One) (north, from man next to PokeCenter after defeating 4 trainers in the area) The Great Crater of Paldea (Upper Level) (TM Machine: 400 LP, 3 Mareep Wool, 3 Pawmi Fur)
Legends: Z-A:(Mable's Research Level 19)
Diamond, Pearl, Platinum, HeartGold, SoulSilver:While it is asleep, the user randomly uses one of the moves it knows.
Black, White, Black 2, White 2:The user knocks away the target and drags out another Pokémon in its party. In the wild, the battle ends.
X, Y, O.Ruby, A.Sapphire:The target is knocked away, and a different Pokémon is dragged out. In the wild, this ends a battle against a single Pokémon.
Sun, Moon, Ultra Sun, Ultra Moon:The target is knocked away, and a different Pokémon is dragged out. In the wild, this ends a battle against a single Pokémon.
Sword, Shield:The user attacks and captures opposing Pokémon using an electric net. This lowers their Speed stats.
B.Diamond, S.Pearl:While it is asleep, the user randomly uses one of the moves it knows.