Tendrils of lightning course from your hand into your blade, linking you and your foe. For the rest of the battle, your enemy must beware your aegis.

Encounter   ✦     Arcane, Lightning, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. AC

Hit: 2[W] + Intelligence modifier lightning damage, and you can use your aegis of assault power on the target of the attack as a free action. The target remains marked by your aegis of assault for the rest of the encounter, even if you use that power against a new target. It is still superseded by other marking effects.

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