The Vault of Dreams
Certain weapons are prone to overheating, either because of poor design or because they fire unstable superheated ammunition. A weapon with this Quality overheats on an attack roll of 91 or higher. When this happens, the wielder suffers energy damage equal to the weapon’s damage with a Penetration of 0 to an arm location (the arm holding the weapon if it was fired one-handed, or a random arm if it was fired with two hands). The wielder may choose to avoid taking damage by dropping the weapon. Dropping a weapon is a Free Action. A weapon that overheats must spend the round afterwards cooling down and may not be fired again until the second round after overheating. A weapon with this Quality does not Jam, and any effect that would cause a Jam (i.e., certain psychic powers) instead causes the weapon to overheat.