Actually, it was set after the Blood War. It's a prequel set before the Rise of Aviagarwal and Silver Soul. and of course, it was a meant to tell the backstories of each undead trolls that were resurrected in myCast: Silver Soul
MyCast: Rules Are Made To Be Broken Part 1: Wrath of Ezmael (Prequel set before Rise of Aviagarwal and further. Sequel to Persona Mayhem and Attack on Space Beasts)
MyCast: Shiroyasha Gaiden: The Untold Story (Anime movie side story, set after the events of Silver Soul. Also covering up events that weren't shown in The Rise of Aviagarwal. Part 2 of a trilogy, also telling the events of the Legend of the Immortal Troll from the prespective of Oddjobs)