Grim Blackguard Utility 12Altar of Domination

A glowing sigil burns on each side of the black stone altar you create, driving your allies to cut down the feeble.

Daily        Conjuration, Shadow
Minor Action      Ranged 5

Effect: You conjure an altar of domination on the ground of an unoccupied square within range. The altar lasts until the end of the encounter, and its square is difficult terrain. While within 5 squares of the altar, you and each ally gain a +2 power bonus to attack rolls against bloodied creatures.

Published in Heroes of Shadow, page(s) 47.