Libra (Eclipse)

Eclipse Libra is a major antagonist who appeared in Fairy Tail's, in Ecilpse Celestial Spirit arc, she is also owned by Yukino Agria before her contract with her terminated.

Eclipse Celestial Spirit arc
Libra along with other Zodiac Celestial Spirit suffured changes in both appearance and personality, and as a result the 12 Eclipse Celestial Spirit turned against humans and nullified all contracts of Lucy and Yukino. After Libra is seen in a Liberum ritual where Leo does the ritual starts. But when Natsu and his friends appear, Leo and the other Spirit attack them. But they are forced to flee through the portal when Gray and the other appear. Then Libra faces Yukino on an unbalanced stone and she needs to stay balanced so she doen't fall, where Libra tells Yukino asks what she's saying with balance, and Libra responds that the answer will be given in due time and asks Yukino to show his balance before attacking it. Then they fight in the middle of the stone while Libra teases Yukino for causing her to lose her balance on the stones. However Libra is struck by the light of Liberum, and in pain and claims that she is losing her balance and due to interference from Natsu, Libra is forced to retreat, only that Yukino goes after her. Libra and Virgo meet and attack both Lucy and Yukino, who are defeated by the Uranos Metria used by them, who then close their gates.

It is later revealed through Ophiuchus that all 12 Eclipse Celestial Spirit feared the great power of the Eclipsed Celestial Spirit King, and that she used the opportunity hoping that Natsu and the others would defeat all 12 Celestial Spirit and gather their power for the Eclipsed Celestial Spirit King, Natsu then says that if you take a good beating at Celestial Spirit King it all ends, while saying he will protect the Celestial Spirit King. She is defeated when Happy takes out her instruments leaving her defenseless for Natsu to attack her by defeating her.

Then Natsu and his friends are teleported and see the Eclipsed Celestial Spirit King absorbing the 12 Celestial Spirit while they are uncoscious. Later in the fight the Eclipsed Celestial Spirit King turns some of Natsu's friends into ribs and Natsu manages to get inside him by releasing the Celestial Spirit King that was inside him, and the 12 Celestial Spirit also thanks Natsu's help.