I don't understand the instruction for this attack. It seems to require one fire energy card (icon on the left), and it also says "find one fire energy card and attach it to this pokemon", which presumaly it's the instruction I get to take once I launch this attack.
But if it requires one such energy card to start with, what's the point of attaching one more to it? (AFAIK attached energy cards stay attached across turns).
What I missing?