Great elixir

A great elixer was a powerful and dangerously unpredictable solution, that was just as lethal as it was rewarding. The legend of this potion was one of the most famous examples of the magic of Halruaa.

Appearance
The elixer itself was a twinkling, aquamarine liquid with translucent viscosity that always appeared to be swirling in motion.

History
The first version of a great elixer was most likely concocted in ancient Netheril. The formula of its creation has long been lost since that time, although specimens appear periodically.

Possible effects
The effect of drinking the elixer was completely random. It could have one, or a combination of, the following effects on the imbiber:
 * Instant death
 * Feeblemindedness, as per the spell
 * An infection of mindfire
 * Permanent blindness
 * Uncontrolled, daily shapechanges, as per the spell
 * Affliction of lycanthropy
 * Gain/loss of intelligence, charm, heartiness, strength etc.
 * Gain of abilities that mimic the spells mage armor, alter self, detect magic, detect thoughts, feather fall, hold person, invisibility, pass without trace, spider climb, water breathing, ethereal jaunt or greater spell immunity