Hetty

Hetty the Witch can be found in Rimmington and is a NPC involved in the quest Witch's Potion. Only one potion is available from her, the center of the said quest.

Magic-Increase Potion

 * Cost: 0 coins
 * Ingredients: Burnt meat, rat's tail, onion, and eye of newt
 * Uses: Improves your magic potential
 * Number of doses after purchase: 1, when you try to take another, you say it smells bad and won't.