Crimson Armor

By sacrificing your life force, you manifest a protective layer that covers you and your gear. You take 1d10 necrotic damage and gain double the amount taken as temporary health for the duration. While you have remaining temporary health points from this spell, you have resistance to necrotic damage. If this damage would reduce you to below 0 hit points, you instead drop to 1.

You may only gain temporary hit points equal to or below your maximum number of hit points. The damage done from this spell can not be reduced in any way and ignores temporary hit points.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you may take an additional 1d10 for each slot above 1st.