Alts of Elisha Blue from Worth the Candle: https://archiveofourown.org/works/47107573/chapters/122314399

Common template traits:

* Necromancy. (Pioneered totally novel applications of Necromancy in Worth the Candle, Part of a wave of entrepreneurs in Ziggurat Scaling with his own specialty being in necromantic applications, invented several tweaks and variants to necromancy spells in Golarion)

* initially strong libertarian-adjacent principles he nevertheless bends and eventually makes a total mockery of in the course of pursuing dark magic, wealth, and knowledge.

* Warped by external factors he should have known better to avoid. (Talking to devils in Worth the Candle, using Archetypal magic in Ziggurat Scaling, Lichdom in Golarion)