The Unholy Dead Feat 1
Source Pathfinder Impossible Magic
Prerequisites You aren't holy
You have turned your necromancy against the divine powers that seek to stop you from achieving your unholy goals. You and your thralls gain the unholy trait. Strikes your thralls make gain the unholy trait and deal 1 additional spirit damage. This additional spirit damage increases to 2 at 10th level. You also gain the following anathema: "destroy undead of no harm to you."
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
NecromancerThis indicates abilities from the necromancer class.
UnholyEffects with the unholy trait are tied to powerful magical forces of cruelty and sin. They often have stronger effects on holy creatures. Creatures with this trait are strongly devoted to unholy causes, and often have weakness to holy. If a creature with weakness to unholy uses an unholy item or effect, it takes damage from its weakness.