TR19

TR19 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. TR19 is Tri Attack.

Game descriptions

Sword, Shield:(Watt Trader - 2000W)
Sword, Shield, B.Diamond, S.Pearl:The user strikes with a simultaneous three-beam attack. This may also burn, freeze, or paralyze the target.
Scarlet, Violet:The user strikes with a simultaneous three-beam attack. This may also burn, freeze, or paralyze the target.