Ruling Luxray's attack "Plasma?

[StruckByRain]

When a player uses Plasma to attack the Defending Pokemon, does the user of the card have to be able to attach a {L} Energy to Luxray to use this attack?

{C} {C} Plasma 40
Search your discard pile for a {L} Energy card and attach it to Luxray.

Thanks in advance.

 

[King Arceus]

No. Just do as much as you can.~Mark