Invented by 957 GUE, the indigo colored FLAXO potion, which executes exquisite torture upon the drinker, tastes a combination of anchovies, prune juice, and garlic powder. The following is a description of this process, written first-hand by an adventurer:

As I finished swallowing the potion, a well-muscled troll sauntered in and strapped me to a torture device. He whacked my head with a wooden two-by-four, grunting "You are playing Sorcerer. It was written by S. Eric Meretzky. You will have fun and enjoy yourself." He repeated this action 999 more times, then vanished without a trace.