Makeing it's debut in lost thunder kinda underwhelming.
Blacephalon-GX – Fire – HP180
Basic Pokemon (Ultra Beast) [R] Bursting Burner: Your opponent’s Active Pokemon is now Burned and Confused. [R][R] Mind Blown: 50x damage. You may send any number of [R] Energy attached to your Pokemon in play to the Lost Zone. This attack does 50 damage times the number of cards sent in this way. [R] Burst GX: Discard 1 of your Prize cards. If that card is an Energy, attach it to 1 of your Pokemon. (You can’t use more than 1 GX attack in a game.) When your Pokemon-GX is Knocked Out, your opponent takes 2 Prize cards.
Weakness: Water (x2)