Hollor is a minor Norse Gods or disease, destruction, and disaster.
I Play with Fire
Holler is one of many minor deities being recruited by Surt for post-Ragnarok reconstruction. When Alex Fierro spreads seeds of doubt among the minor gods, he joins in their uncertainty Sutton summons a sword of flames and they fall in line. He vanishes with the other minor deities when the child of Loki subdues the fire lord.