As you strike your foe, you place another foe under your aegis.

Encounter   ✦     Arcane, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Intelligence vs. AC

Hit: 2[W] + Intelligence modifier damage. One enemy within 5 squares of you other than the target is marked until the end of your next turn.

  Aegis of Assault: The enemy you mark is marked by your aegis of assault and takes damage equal to your Strength modifier.

Published in Arcane Power, page(s) 56.