When the cities are on fire with the burning flesh of men, just remember that death is not the end

When a Space Marine dies in battle, his unquenchable rage may live on in the Warp; locked in immortal combat with Daemons.

The despair, anger and loyalty of an Imperial City under attack from mankind’s foes can act as a psychic beacon, summoning these vengeful shades back into the material world. 

When they arrive, their incandescent anger infuses the forlorn defenders, rallying them to unleash unbending fury upon the invading foe.

Released and incarnate, the Adeptus Iratus spearhead a nigh unstoppable rampage of death and destruction.