You imbue your opponent with a crackling arcane charge, hindering the potency of its next attack.

At-Will   ✦     Arcane, Implement, Lightning
Standard Action      Melee 5

Target: One creature

Attack: Intelligence vs. Reflex

Hit: 1d8 + Intelligence modifier lightning damage. The next attack the target makes before the end of your next turn takes a penalty to the damage roll equal your Constitution modifier.
Level 21: 2d8 + Intelligence modifier lightning damage.

Update (6/14/2010)
In the Range entry, delete “or Ranged.”

Published in Eberron Player's Guide, page(s) 47.