At the same time that your attack hits home, it sends a message to an ally to get in a quick follow-up strike.

Encounter   ✦     Divine, Psychic, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Wisdom vs. AC

Hit: 2[W] + Wisdom modifier psychic damage, and one ally of yours adjacent to the target can make a melee basic attack against the target as a free action.

Effect: Until the end of your next turn, the target takes a penalty to attack rolls equal to the number of its enemies flanking it.

Published in Neverwinter Campaign Setting, page(s) 59.