Hellfire SigilArtificer Attack 19
Flames dance upon the surface of the item you infuse with magic, eager to incinerate your foes.
Daily ✦ Arcane, Fire
Minor Action Melee touch
Target: One weapon or implement
Effect: Until the end of the encounter, any attack that uses the target as a weapon or an implement deals extra fire damage equal to 1d8 + your Constitution modifier.
As a free action, the target's wielder can end the effect when he or she hits a creature using the target in order to ignite that creature with hellfire (save ends). While affected by hellfire, the target takes 10 fire damage at the start of its turn. In addition, any enemy within 2 squares of the target at the start of its turn takes 10 fire damage.
Published in Eberron Player's Guide, page(s) 54.