Alter Aeon Online Help

Keywords are:  'cleric spell purge blood'

Spell: purge blood              Mana:  85  Wis: 34  Chr: 30  Lvl 33 Cler  (21%)
                                (helpful)   Requires: cure poison
                                Group: Cleric healing spellgroup
                                (Can Be Groupcast)

Usage:
cast purge blood <target>

The 'purge blood' spell is an extremely powerful, extremely high level
spell that is used to remove all poisons and pathogens, purifying the
blood of the target.  It is the only known way to remove the blood-based
necromancer spells.