Liria Valthorin's Silverlight RiposteLevel 11 Uncommon

Your guard never falters, foiling the blades of sneaks and assassins.

Grandmaster Training        9,000 gp

Power Encounter (Immediate Interrupt)

Trigger: You are hit by an attack while you grant combat advantage.

Effect: Negate any extra damage or effects that are a result of you granting combat advantage for the triggering attack.

Published in Dragon Magazine 386, page(s) 66.