Burst

Deliora's roar echoes across the Island!! Natsu faces off against the "time manipulator" Zalty while Erza stops the ceremony above, but it's all in vain as the immortal demon is resurrected once more! Gray decides to use the sacrificial magic, Iced Shell, to seal Deliora in eternal ice just like Ul once did before him, but Natsu stands against it! And just as its villainous fist finds Natsu and the others, events take an unexpected turn...Source: crunchyroll