As promised: lore on how the hybrids work for the dunmeshi crossover.
demon-human (all the human races, not necessarily just tallmen) hybrids are creations rooted in magic the ancient ones were trying to use to get a better grip on the demons they summoned.
A demon-human hybrid is a chimera of a demon and a member of the mortal human races. Because demons are just extensions of the greater primary demon personality, this process cuts them off from the realm of the infinite and the primary personality of the demon, and thus removes any will or sense of self from the individual demon.
Unfortunately for the ancient ones, hybrids did not have access to the limitless mana the demons of the infinite did, although they do have very large mana reserves and regenerate it faster than normal humans.
Hybrids do not age past maturity.
The chimeric form of a hybrid is identical to the human host's original form as the demon's "soul" is a blank slate and dominated by the host's, save for one detail: a "trigger" taking the form of a weapon appropriate for the host. The demon's form has changed to that of a weapon because the demon's metaphysical purpose has changed from "puppet" (of the greater infinite demon personality) to "weapon" as that was the intent of the ancient creators of this procedure. The host human takes on a form fused with the weapons of the demon when this trigger is pulled.
Hybrids have magic abilities fitting the nature of their weapon that use their mana directly and do not require commanding spirits to use. Crossbow can conjure nearly limitless amounts of crossbow bolts to fire from her crossbows, flamethrower can summon up terrible gouts of liquid flame, et cetera et cetera. Hybrids can also learn standard types of magic.
Hybrids are stronger and faster than normal humans, moreso in their transformed state.
Hybrids can regenerate from wounds via the consumption of blood and flesh as even though they are cut off from the infinite they embody its perpetual and limitless nature tainted by its hunger.
There is no known means to permanently kill a hybrid. Some scholars believe the ancients possessed a now lost means to do so.
Hybrids have been created in the post-ancient period, typically by elves. The creation of a hybrid is forbidden on pain of death as they present an unknown existential threat to the world by allowing a demon to exit a dungeon. Canaries have capture and neutralize on sight orders for any hybrids. This duty is rarely enacted however, as there are only 8 known hybrids in the world.
There is no standard procedure used by the canaries for containing a hybrid. Two have been made canaries through means of restraining spells, although one slipped the leash.
