It's Abomination-Mas! I suppose it's also St. Patrick's Day, so maybe I should have had a "Nature of the Leprechaun" or something ready for you. But here's giant bat-monster instead, which is close enough!
PDF: https://www.somanyrobots.com/s/Class-Abomination.pdf
GMBinder: https://www.gmbinder.com/share/-OaIBtALWJfcfEV3_vcb
Changelog
Added the Nature of Blood!
Nerfed Sacrificial Frenzy
Increased cost and limited to 1 frenzy per round
Renamed Unlearned Skill and clarified
Nature of Flame
Replaced Overwhelming Blaze with Spreading Blaze
Buffed Unbounded Ignition
Nature of the Slayer
The general idea here is a) to rein it in, it was too strong, and b) to open up more space for the Nature of Blood. So most of Slayer's temporary hit point generation is gone, and instead of being tanky while it kills things, it's more of a glass cannon that burns through its own hit points to deal damage.
Nerfed Whirling Claws
Replaced Demonic Frenzy with Demonic Consumption
Reworked Bloodthirsty Frenzy to accomodate above
Reworked Bathed in Blood similarly
Added Chaotic Defenses