Marked Fury

Heroic Tier
Prerequisite: Fighter
Benefit: If an adjacent enemy that is marked by you makes an attack that doesn’t include you as a target, it takes a penalty to the attack roll equal to either -2 or the number of enemies adjacent to you, whichever is worse. This penalty replaces the normal penalty for having a creature marked.

Published in Martial Power 2, page(s) 137.