Dark Style: Black Flame Bomb

The user's eyes become red and his body becomes covered with dark smoke. A dark energy ball forms in his palm and becomes bigger and bigger until it explodes, devastating all its surrounding within 1 kilometer squares, in a dark-fire (Amaterasu-like) storm. The ball has to be thrown to the opponent before it explodes. The user is unaffected by it because he is protected by the dark smoke shield. However, the user's arm is damaged and immune to medicine and Contamination Jutsus; thus he cannot move his arm and it pains a lot for several days.