With a word, you turn a sure strike into a glancing blow that momentarily throws your opponent off balance.

Daily  
Immediate Interrupt      Personal

Trigger: An enemy hits or misses you with an attack

Effect: Whenever the target makes an attack roll (including the attack roll that triggered this power), roll 1d6 and subtract the result from the target's attack (save ends).

Published in Dragon Magazine 380, page(s) 88.