You focus your attention on a lone enemy, tearing into it with deadly force.

At-Will   ✦     Martial, Stance
Minor Action      Personal

Effect: You assume the duelist's assault stance. Until the stance ends, you gain a +4 power bonus to melee weapon damage rolls with basic attacks against a target that has no creatures adjacent to it other than you.
Level 11: +6 power bonus.
Level 21: +8 power bonus.

Published in Heroes of the Fallen Lands, page(s) 154.