- If the Defending Pokemon doesn't have any Energy cards attached to it, does Typhlosion's "Flare Destroy" attack still require Typhlosion to discard an Energy from itself?
- Yes, if the attacking Pokemon has any Energy cards attached, it must discard one of them.
Source:
HeartGold & SoulSilver FAQ (2010-02-11), PUI Rules Team (2010-02-11)