TR68

TR68 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. TR68 is Nasty Plot.

Game descriptions

Sword, Shield:(Watt Trader - 2000W)
Sword, Shield, B.Diamond, S.Pearl:The user stimulates its brain by thinking bad thoughts. This sharply raises the user’s Sp. Atk stat.
Scarlet, Violet:The user stimulates its brain by thinking bad thoughts. This sharply raises the user’s Sp. Atk stat.