Zatch Bell!

Buzarai's Fierce Attack. Dioga VS Baou. Reversal chain. (3x30)

Air date: Oct 30, 2005

With both sides running out of energy to cast spells, they realize the victor will be the one who uses their final spells effectively. Buzarai uses his strongest spell and Kiyo realizes "Bao Zakeruga" can not defeat it unless powered by at least one "Zagurzem".