Black Fester — Anti-Healing Alchemical Weapon Paste

How Black Fester Interrupts Healing

Illustration of Black Fester alchemical paste
Midjourney:

Source Advanced Race Guide

Rules sourcePathfinder 1e — Advanced Race Guide
ApplicationCoat a weapon; the paste remains until its first successful strike
Target duration1 hour after that strike
Healing restrictionA creature attempting magical healing must succeed on a DC 10 caster level check to restore hit points

Black Fester is dangerous because the wounded target can be denied magical recovery, not because the paste deals extra weapon damage. It matters most against a foe relying on emergency healing in the first hour after being struck.

Like a poison, black fester stays on a weapon until the first time it strikes an opponent. It remains in the target’s body for 1 hour. A creature exposed to black fester resists magical healing; a creature trying to magically heal the target must make a DC 10 caster level check to restore any hit points to the target.

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