Jadaferlas the Ancient is a character in Pillars of Eternity II: Deadfire.
||A creature of smoke and scales, embers and talons looms up from the darkness.
Her back and ribs gleam luridly, red as the lake of fire that laps at her feet. She hisses, the sound like rocks grating together in her throat, and though her peeled-back lips forms no words, you understand.
Jadaferlas struck a deal with the Rathun eons ago, feasting on the morsels provided by them for centuries and aiding them whenever it struck her fancy. However, when the high priestess decided to try and use her to attack Eothas, Jadaferlas quickly reneged on the deal and killed her and the Rathun. To her, it was nothing more but acknowledging reality: They made the deal while she was a hatchling - now she was far more powerful than they could imagine and it would be improper to let them ride fire incarnate.