Woundweal

Source Adventurer's Armory pg. 19
Price 100 gp; Weight —
Type injury; Save Fortitude DC 18
Onset 1 round; Frequency 1/day
Effect impaired healing (see description)
Cure 2 saves

Description

This gritty black paste is a poison that interferes with an afflicted creature’s ability to recover from injuries. All Heal checks applied to the creature suffer a –10 penalty. In addition, anyone using magical healing on the target must make a DC 25 caster level check to succeed.