A Basic Pokemon Card of type Psychic with the title Blacephalon and 110 HP of rarity Rare Holo from the set Cosmic Eclipse and the flavor text: It slithers toward people. Then, without warning, it triggers the explosion of its own head. It's apparently one kind of Ultra Beast. It has the attack Fireworks Bomb with the cost Psychic, Colorless, the energy cost 2 with the description: Put 4 damage counters on your opponent's Pokemon in any way you like. If your opponent has exactly 3 Prize cards remaining, put 12 damage counters on them instead. It has weakness against Darkness 2. It has resistance against Fighting -20. 
Blacephalon