Your obsequious call draws attention to your deeds, risking your master's ire if you fail.

Encounter   ✦     Shadow
Minor Action      Personal

Effect: If you make an attack this turn and hit with your first attack roll, the creature you hit takes 1d8 extra damage from that attack, and you gain 5 temporary hit points.
    If the attack roll misses, or if you do not attack this turn, you grant combat advantage and are deafened until the end of your next turn.
    Level 11: 10 temporary hit points.
    Level 21: 15 temporary hit points.

Published in The Book of Vile Darkness, page(s) 1-12.