The Gates of Ragnarok

After the old world was reduced to ash, the cremating flame was gathered behind locked doors and sealed with four runes made of Stardust.  When inscribed again, the moment of Ragnarok manifests. Each servant of the Red Plague carries Stardust in their body.

Twice per day, you may activate this ability. For two turns, you may release a 10 ft. emanation centered on you to deal (2d4) fire damage to any creature or object entering the emanation or ending their turn in it. This ability can only take damage like this once per round.