SRD:Icy Blast (Epic Weapon Enhancement)

Icy Blast
On command, an icy blast weapon is sheathed in icy cold (though this deals no damage to the wielder). On any hit, this cold washes over the creature struck, dealing +3d6 points of bonus cold damage. On a successful critical hit it instead deals +6d6 points of cold damage (or +9d6 if the critical multiplier is x3, or +12d6 if the critical multiplier is x4). Bows, crossbows, and slings with this special ability bestow the bonus cold damage upon their ammunition.

Caster Level: 21st; Prerequisites: Craft Magic Arms and Armor, Craft Epic Magic Arms and Armor, cone of cold; Market Price: +6 bonus.