Publication:Dread Codex/New Spells/Animate Necrosis

You animate the dead tissue in the wound of a wounded living creature. This spell can affect any creature currently below its maximum hit points due to injury. Bits of animated flesh form a sickly tendril that reaches up and out of a single wound, attacking the living portion of the creature. The creature must make a Will save immediately or the sight of this horror stuns it for 1d3 rounds.

Whether the creature is stunned or not, the undead tendril of flesh makes attacks with a +15 bonus (Strength 20). It makes a grapple attack as a creature of the subject's size (even though it is actually smaller). If it achieves a hold, it immediately begins constricting and strangling the creature, inflicting 2d6 points of damage per round. The necrotic tendril has 2 hit points per Hit Die of the original creature, and AC 15 (+2 for size, +3 for natural armor). A single casting of this spell affects only one wound.

Material Component: A bit of string coated in animal fat.