Loki Battles Thanos with help of Tesseract

[kittyhelix.livejournal.com]

Looking for this fic I read one or two years ago. The Tesseract wasn't an Infinity stone but rather one of four sister tesseracts created by an ancient race. Loki was able to connect with the main one and through it the others that were out in space. I remember the battle involved the Avengers as well as other superheroes and others from the nine realms. I can remember the Elves from Alfheim brought casks of restorative wine and passed out cups to those who were flagging. Eir and her group of healers set up triage areas. Loki was able to defeat Thanos by using the power from the tesseracts. I've been searching through my bookmarks on AO3 but I have over 2000. I don't remember if this was gen or slash. I'm not sure if this is from the same fic but I think Lady Death was in it as well, but only Thanos could see her. Every time he would harvest souls for her she would gain substance. Near the end she became visible to the others. They though she was a figment of his imagination at first. Does any of this sound familiar? Any help would be much appreciated Thanks!