TR45

TR45 teaches a move to a compatible Pokémon in Pokémon Sword & Shield. Technical Records are consumed after use, but can be re-bought from Watt Traders. TR45 is Muddy Water.

Game descriptions

Sword, Shield:(Watt Trader - 5000W)
Sword, Shield, B.Diamond, S.Pearl:The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.
Scarlet, Violet:The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.