If I want to use Reshiram's Blue Flare attack and I have 3 energies attached (for this example 1 x fighting, 1 x fire and 1 x prism energy) would I a. have to only discard the fire energy b. discard both the fire energy and the prism energy or c. I would not be able to use the attack.
for quick reference for Blue Flare it says you have to discard 2 x fire energy attached to reshiram. prism energy provides colourless energy but can provide every energy type to a basic Pokemon such as reshiram.
this issue came up in a match I played last night
