You infuse a weapon with a brief yet powerful enchantment.

Daily   ✦     Arcane
Minor Action      Close burst 5

Target: One weapon or implement in the burst

Effect: You infuse the target with arcane energy. Choose a damage type: acid, cold, fire, force, lightning, or thunder. The target deals extra damage of this type equal to your Intelligence modifier until the end of the encounter. Until the end of the encounter, whenever the target's wielder scores a critical hit with the weapon, the target of the attack gains 10 ongoing damage of the damage type you chose (save ends).

Update (11/23/2009)
This power should be a daily power.

Published in Eberron Player's Guide, page(s) 59.