x2Massive EruptionDiscard the top 5 cards of your deck. This attack does 80 damage times the number of Energy cards you discarded.
Flare DestroyDiscard an Energy attached to this Pokémon. Then, discard an Energy attached to your opponent's Active Pokémon.
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.
When I use Typhlosion's "Flare Destroy" attack, which player chooses the Energy card to discard from the Defending Pokemon?
The player that used the attack gets to choose which Energy cards get discarded from both the Active and Defending Pokemon.