You keep your off-hand weapon ready to block enemy attacks.

Daily   ✦     Martial, Stance
Minor Action      Personal

Effect: Until the stance ends, you gain a +1 power bonus to AC while you are conscious and wielding two melee weapons. If you do not make an off-hand attack during your turn, the bonus is instead +2 until the start of your next turn.

Published in Martial Power 2, page(s) 37.