Nephilim

It's quite hard to find these characters, as they only spawn in a rare mini-biome that only has a chance to spawn in sky portals. If you're looking to get one, it's advised you scour every sky portal you get.

They have a unique mechanism, the pact, which is only shared with Devils. Upon recruitment via fucking, a pact is formed between the two, granting a special Trait to both. The Nephilim's AngelPact gives LRes +5 and mana +5. If the pact is formed by the MC, they gain a special ability to use at home. An MC with AngelPact gains divine touch, available on the character screens of other units at home, which takes 10 stamina from the MC and gives it to that unit.

Nephilim only gain support skills and their stats are focused on mana and Magic. Also they are not able to equip a weapon, gaining a second misc slot instead. This relegates them to a supporting role in combat. However it should be noted they deal True damage that ignores types, terrain and Armor, so if they get Telekinetic on them they can become quite dangerous.