FB09-120-R - Big Bang Kamehameha

Permanent When you would pay the cost of this card in your hand, you may remove a total of 2 of your [Ki] instead.
Activate Main Choose up to 1 Battle Card with <GT> in its card name in your Battle Area and choose up to 1 Battle Card with a cost less than or equal to the chosen card in your opponent's Battle Area and KO it.
([Ki]: An energy marker placed under a card.)