Makes cast out of blood

I had no time to think. I acted instinctively, in desperation drawing on the darkest strings of power. Xenith’s blood pulled itself from the grass, dripping upwards, swirling. If I could form a blade, I could form a cast. I spun the blood about her, hardening it into a full-body cast, leaving only her flayed muzzle exposed so that she could breathe.