Canon post-Avengers MCU!Loki is terrible. I only like fanon MCU!Loki. Unless it's Myth Loki showing up MCU Loki (http://archiveofourown.org/works/1092101).
Fire Lord Loki would be awesome. Very awesome. He'd probably try to keep the throne just because watching Zuko try and fail would be hilarious. Azula, now... I wonder how Loki would deal with her. She, of course, would plot to unseat him, and Loki would enjoy that, too, but maybe he would try to get her and Zuko to fight for his amusement.
I wonder what he would do about the war. Probably his only nod to his role as Avatar would be ending it and watching the Fire Nation's imperial court freak out over it.
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Fire Lord Loki would be awesome. Very awesome. He'd probably try to keep the throne just because watching Zuko try and fail would be hilarious. Azula, now... I wonder how Loki would deal with her. She, of course, would plot to unseat him, and Loki would enjoy that, too, but maybe he would try to get her and Zuko to fight for his amusement.
I wonder what he would do about the war. Probably his only nod to his role as Avatar would be ending it and watching the Fire Nation's imperial court freak out over it.