Jaws augmented and distended by the threads of crocodile, hound, and strange serpents of the deep.
Claws drawn from the simple house cat, augmented with the hunter eagle's talons, and the metal teeth of the humble shrew.
But their greatest and most curious weapon was in their very breath.
By intermingling and molding their lungs with their bowels, they were granted the breath of birds, allowing them to breathe in and out at the same time. Within their altered guts, a poison billows, crafted of knowledge drawn from the minds of the hated Daeva—a truly corrosive brew.
Not caustic against the flesh, but the mind. The toxin belched forward from their bellows-like lungs started a slow confusion, and with each breath tasted, more and more of the mind would melt away while drawing the breather towards the source. This was secondary, however, to the main goal, to rob the Daeva of their magics.
Magic is but an extension of one's Will, or soul, and what empowers and shapes the soul is memory.
To snatch away memory wounds the soul, cracks the Will, and what were Daeva but rancid souls puppeting forms not their own. Parasites whose connections needed particular blades to cut.
This was to be that blade. A hatchet to part control from the soul and allow the magic to run wild and feral, just as willing to bite the hand that cast it as to do as asked.