Self-directed pools of blood spawned by Li Na's dread that hunt through Club Vanquisher's halls on their own.
Once Bleeding Horror took hold, spilled blood stopped behaving like liquid. It bubbled on the stairs like boiling water, swirled around a dying ram like liquid mercury and poured into his mouth and nostrils, and then began moving with purpose. Carl watched what appeared to be a sentient pool of blood rush across a wall, leaving a long smear, and slurp its way around a corner; a new group of fairies and elves started screaming, and the screams ended in a splash and a sound like hundreds of twigs snapping at once.
Li Na confirmed the blood is under her control and will keep attacking her enemies even if they carry aura protection, and that Carl is flagged as an ally so it won't hurt him. Prepotente stashed a sample of it in a potion jar and zapped the jar into a pet carrier.
A moving pool of blood that climbs walls leaving long smears, slurps around corners, and boils where it pools.
The autonomous killing force loosed on the club, and a specimen Prepotente takes with him.