Anemic

Your body is missing some of its lifeblood and makes you especially vulnerable to blood loss. However, your weak lifeforce makes it difficult for undead and other creatures with lifesense to notice you.

Benefit: Your life force is weaker and creatures that rely on Lifesense have a harder time perceiving you. You have partial concealment against Lifesense at all times.

Drawback: When determining the effects of Blood loss, consider your amount of Blood Loss to be one higher.