Fire Rift (Broken Spire)
Faction title: Portal to the Plane of Fire
Faction map name: The Disc of Flame
Start room: The Burning Disc
Finish room: Magma Dragon’s Eyrie
Faction info: Many fiery creatures have come through this elemental rift.
Added: 4th February 2022
GoWDB link: Fire Rift - Kingdoms - Gems of War Database
Faction weapon (Charred Blade): Charred Blade - Weapons - Gems of War Database
Faction pet (Burney): https://gowdb.com/pets/13184
Three paths are available here, and one of them has just 1 room luckily. No occasional treasures here, just two treasure rooms in the south pass.
Useful troops are Fire Spirit (generator with bonuses) and Magma Dragon (AoE damage with Lavastorm conjuring). The faction weapon is a generator too, and it can find its uses in defense, for example.
Another uniform faction: Elementals added to an Elemental kingdom.