The Gates of Hell (Dice Freaks)
Grimoire of Cosmic Entities Volume One By Eli Atkinson, William Church and Serge W. Desir, Jr.
Original Concept by Serge W. Desir, Jr.
Full netbook can be found on the following website
On command, a hellfire blast weapon is wreathed in black or blood red flames (this deals no damage to the wielder). On any hit, the fire bursts forth, dealing +3d6 points of bonus Hellfire damage. On a successful critical hit it instead deals +6d6 points of Hellfire damage (or +9d6 if the critical multiplier is x3, or +12d6 if the critical multiplier is x4, etc.). Bows, crossbows, slings, and other ranged weapons bestow the bonus Hellfire damage upon their ammunition.
Overwhelming Evocation; CL: 22nd; Craft Magic Arms and Armour, Craft Epic Magic Arms and Armour, Hellfire Storm; Price: +7 bonus.