Natsu Dragneel & Happy vs. Ophiuchus (Eclipse)

Natsu Dragneel & Happy vs. Ophiuchus (Eclipse) is an anime-exclusive fight fought between Fairy Tail Mages Natsu Dragneel, Happy and Eclipse Celestial Spirit Eclipse Ohpiuchus.

Prologue
After the 12 Zodiac Celestial Spirits are sealed back at the Celestial Spirit World, Eclipse Ohpiuchus reveals that it was part of her plan to transfer their power to the Eclipse Celestial Spirit through Liberum. With Princess Hisui concluding that it will be the Celestial Spirit World's dissolution, Natsu proclaims that he will defeat both Eclipse spirit and her king.

Battle
Happy flies with his comrade towards the Serpent Bearer, as he tells his fellows to simply destroy the Celestial Globe to stop Liberum. As he charges with his Fire Dragon's Iron Fist, Ophiuchus whistles through her ocarina, manipulating Natsu's fire, leading it to strike it's user, knocking him out. As he rise again, Ophiuchus separates him for his Exceed partner Happy and starts ramming the Dragon Slayer on the ground repetitively, before sending both of them away. Ophiuchus then attempts to kill her opponents by "punishment of death" and begins shooting several beams at them, overwhelming them. The two then decides to take out the ocarina before the spirit. As the serpent mocks the Mages for trying to destroy the globe, Natsu activates his Black Fire Dragon Mode once again and charges at the spirit in his Darkness Phoenix Blade. As she is about to play her ocarina, Happy sneaks one her, kicking the instrument form her hand. Ophiuchus, then lies open, gets hit by Natsu's attack, granting her her defeat.

Aftermath
Following her defeat, human Ophiuchus lie on the ground, grievously injured as she return to the Celestial Spirit World. Natsu and the others celebrate their victory for a bit, just to discover that Liberum has already transferred all the power to the Eclipse Celestial Spirit King. They then decide to travel to the celestial world and prevent it's eclipsed king form demolishing it.