Vaatu is a major antagonist in the Nickelodeon series, The Legend of Korra. An extremely powerful spirit, Vaatu is a major player in the third Disney Vs Non Disney Villains War and a secondary player in the Non Disney Villains Tournament.
Disney Vs Non-Disney Villains War - Part Three
Dominion over the Spiritual Realm
Ruling over the spiritual realm, Vaatu gets a visit from the previous deceased demon, Shendu. However, before he could judge him, Vaatu gets a sudden sense of Mirage and Mumm-Ra's battle, during the final events of the previous war. Outraged of interfering in his dominion, Vaatu sets off to confront the Evil Incarnate himself. At his arrival, Vaatu duels Mirage, for dominion over the spiritual world. Vaatu deflects most of Mirage's blasts, before he could grab her in his grip. However, a dangerous enemy, lurking in the shadows, frees Mirage from Vaatu's grip, before he and Mirage would escape from the spiritual world, much to Vaatu's dismay. To Vaatu's surprise, the enemy is revealed to be Mirage's former enemy, Mumm-Ra.
Non Disney Villains Tournament
After possessing Valmont throughout most of the war, Vaatu finally emerges in the midst of a fight between Valmont and Shendu. When Shendu exorcises Valmont of his possessor, Vaatu angrily fights the demon sorcerer. He blows a hole through Shendu's chest, but the dragon manages to recover quickly, Shendu then launches a fire blast on Vaatu, turning his entire body into ash.