Taint Potion

SPELL                        Group: Alchemy
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Rather than worrying about opponents carrying large quantities of 
curative potions, Alchemists teach them a painful lesson.  Alchemists
have the ability to change what spells a potion bestows.  They have
several spells for this purpose, each with a different set of spells:

    -Mar Potion: replaces the potions spells with two dispel magic
     magic spells.
    -Taint Potion: replaces the potions spells with feeblemind and
     blasphemy.
    -Shift Potion: changes the potion to have a teleport spell and
     two curse spells.
    -Befoul Potion: changes the potion to carry ebola, slow and
     blindness.
    -Spike Potion: changes the potion to carry four poison spells.
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Classes and levels for taint potion:
augurer     : 50  alchemist   : 30