Eternal Blade Feature Blade Guide

You home in on your foe, linking your weapon to its life force to improve your accuracy.

Encounter        Augmentable, Psionic
Minor Action      Close burst 10

Target: The enemy nearest to you in the burst

Effect: Until the end of the encounter, you gain a +2 bonus to opportunity attack rolls against the target, and it grants combat advantage to you while you’re the only creature adjacent to it.

Augment 1

Special: If the target drops to 0 hit points during this encounter, you regain the use of this power.

Published in Player's Handbook 3, page(s) 58.