Potion Master

Mechanics
This role can select between three potions to use: a healing potion, a revealing potion, and an attacking potion. Each of the potions has a three day cooldown though. With the Necronomicon, the cooldowns for the potions are removed.
 * The attacking potion will deal a basic attack to the target.
 * The healing potion will heal your target from attacks for that night.
 * The revealing potion will tell you your target's role for that night.

Strategy

 * Normally, it is better to kill instead of healing or revealing at the beginning of the game. Doing this lets you win faster. Your coven are unlikely to be attacked, and your target's role is sometimes of no use to you.
 * When you have the Necronomicon, it might be a good idea to use a revealing potion two nights in a row, and then use a killing potion on the third night. This way, the rest of the town does not know you have the Necronomicon,which could make the town panic that another role has it instead.