Excalishman, holding his own version of Sam's Everlasting Potion.

The infinity potion is Excalishman's creation and is also much like Sam's own potion, the Everlasting Potion. Rather than transforming into a sword when turned around, it can shoot out various dangerous potions, like the paralysis potion, which paralyzes the target forever. Luckily, Excalishman also can have his infinity potion become an infinity cure, healing just about anything, unless cursed with black magic or something else of the sort.

Infinite Potion.