Avicia’s poster of record on the forum megalist in 2021, whose request of 7 July 2021 is the only surviving roster of the Niflheim community alliance.
HungHung filed Avicia's updates to the megalist during 2021, including routine guild-level corrections in May of that year[1]. On 7 July 2021 he posted the request that became the only public record of an entire alliance: "Can you also add Avicia [AVO], Blue Nations United [IBT], ShadowFall [Shy], and TheNoLifes [TNL] in the Niflheim community alliance? Don't replace valhalla, just add it as a second alliance please :)"[2]
The post is doubly valuable. It names Niflheim's four member guilds, and its second sentence records that those same guilds simultaneously belonged to the war alliance Valhalla — direct evidence that community and war alliances ran in parallel over the same membership rather than replacing one another[2]. Sg_Voltage answered within the hour: "Should be set, let me know if you want anyone else added to the community!"[3]
No other source lists Niflheim's membership, and HungHung's rank within Avicia is not stated anywhere in the record.