TR71

TR71 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. TR71 is Leaf Storm.

Game descriptions

Sword, Shield:(Watt Trader - 8000W)
Sword, Shield, B.Diamond, S.Pearl:The user whips up a storm of leaves around the target. The attack’s recoil harshly lowers the user’s Sp. Atk stat.
Scarlet, Violet:The user whips up a storm of leaves around the target. The attack’s recoil harshly lowers the user’s Sp. Atk stat.