Death Aura is an ability that, will inflict cursed status if the unit processing the feat is damaged by an unit using normal attack, or successfully damages the enemy unit. Those suffering from cursed status, will have 50% chance to skip its normal attack in its battle cycle.
When it is triggered with either side of unit taking damage, if the damage is totally blocked (Flying or Block ability on defender) it is not triggered.
Death Aura is mainly gained by Demons, Undeads and a few artifacts and spells.
Death Aura cannot afflict Immune units.