PM

PM (acronym for Potential Mana) is the statistic that determines the amount of abilities a character may cast. In fact, most skills have a mana cost that must be paid whenever the skill is cast. The mana is only paid after the spell is successfully cast (or upon a 20 on die)

There are two kinds of PM: Current and Maximum.

Maximum
Max PM is the highest amount of mana a character may possess. Unless an effect specifies so, whenever the character recovers PM that would make it have more than Max PM, the Current PM becomes equal to Max PM instead. When sleeping for 8 hours, recover an amount of mana equal to Max PM.

Current
Current PM is the amount of mana a character has in a determined moment. This value cannot be negative nor higher than Max PM unless an effect specifies so. Whenever an ability is cast, remove its cost from the character's current mana.