TM023

TM023 teaches a move to a compatible Pokémon. TM023 is:

Game descriptions

Red, Blue:Celadon City (Game Corner - 3,300 Coins)
Gold, Silver:Olivine City (Gym - defeat Jasmine)
Ruby, Sapphire:Meteor Falls
FireRed, LeafGreen:Celadon City (Game Corner - 3,500 Coins)
Diamond, Pearl:Iron Island (B2F east)
HeartGold, SoulSilver:Olivine City (Gym - defeat Jasmine)
Black, White:Battle Subway (36BP)
Black 2, White 2:Pokémon World Tournament (18BP)
X, Y:Battle Maison (32 BP)
O.Ruby, A.Sapphire:Fallarbor Town (from Professor after rescuing him in Meteor Falls)
Sun, Moon:Malie City (PokéMart - $10,000)
Ultra Sun, Ultra Moon:Ten Carat Hill (Farthest Hollow, southeast)
L.G. Pikachu, L.G. Eevee:Saffron City (Fighitng Dojo; defeat Coach Trainer)
Sword, Shield:Hammerlocke
B.Diamond, S.Pearl:Iron Island (B2F east)
Scarlet, Violet:(TM Machine: 800 LP, 3 Mareep Wool, 3 Dedenne Fur)
Legends: Z-A:(Mable's Research Level 15)
Ruby, Sapphire, Emerald:Slams the foe with a hard tail. It may lower DEFENSE.
FireRed, LeafGreen:An attack with a steel-hard tail. It may lower the foe’s DEFENSE stat.
Diamond, Pearl, Platinum, HeartGold, SoulSilver:The foe is slammed with a sturdy tail of steel. It may also lower the target’s Defense stat if it hits.
Black, White, Black 2, White 2:The user throws a stone or projectile to attack an opponent. A flying Pokémon will fall to the ground when it’s hit.
X, Y, O.Ruby, A.Sapphire:The user throws a stone or similar projectile to attack an opponent. A flying Pokémon will fall to the ground when it’s hit.
Sun, Moon, Ultra Sun, Ultra Moon:The user throws a stone or similar projectile to attack an opponent. A flying Pokémon will fall to the ground when it’s hit.
Sword, Shield:The user attacks and steals the target’s held item simultaneously. The user can’t steal anything if it already holds an item.
B.Diamond, S.Pearl:The target is slammed with a steel-hard tail. This may also lower the target’s Defense stat.