Ultimate buu using the mystic shooter.
Mystic Shooter (ミスティックシューター) is an energy disc barrage used by Super Buu after his absorption of Gohan. First, Super Buu w/ Gohan raises both of his hands backwards, and charges red streaks of eletricity in his palms. Then, he swings his hands over his head and fires reddish-pink energy discs against the opponent, inflicting a high amount of damage.
Super Buu used this attack during his battle against Goku and Vegeta in their Super Saiyan 2 forms. After listening to Goku and Vegeta's arguement about fusing together, Super Buu chased after the Saiyans with a powerful barrage of energy blasts. Goku and Vegeta flew down into a canyon and emerged to fire energy waves up towards the pursuing Super Buu. However, Super Buu counterattacked with the Mystic Shooter, scattering the attacks into many energy blasts across the Earth and injuring Goku and Vegeta, reverting them back into their normal states.
Mystic Shooter was named in Dragon Ball: Raging Blast and is one of Super Buu (Gohan absorbed)'s Super Attacks.