Aspect of Shadow

The drop of blood becomes black and is consumed by seemingly nothing and dark runes and markings appear on the caster's skin. Suddenly, a looming shadowy figure of an ancient being appears around its summoner and the summoner rises off the ground. The figure is only the upper half of something, but this half stands around 8-10 feet tall with the only visible features being its arms, torso and head, and three glowing purple eyes. Its summoner regains 10 hit points and gains 10 temporary hit points. They also gain a +2 bonus to AC, an extra 10 feet of movement (You hover, but your movement is based off of walking speed), and are immune to being petrified for the duration of the spell. While the figure is summoned, the summoner resists damage from spells and is immune to necrotic damage as well as having advantage on all spell saves. Additionally, any melee attack that hits the target must make a Wisdom save equal to the summoner's spell save save or become frightened for one minute. Any spells cast during this spell gain advantage on attack rolls. If the spell is a single target spell, it deals extra damage of the appropriate type equal to the spells level.

At the start of each of the summoner's turns after the first turn this husk is summoned, the markings and runes flare with deep purple light and the summoner must make a DC 15 CON save. On a failed save, they lose 1d6 hit points (ignoring temporary hit points) and cannot concentrate on spells until the start of their next turn. On a successful save, the summoner takes no damage and the runes stop glowing. If this damage would kill them, the summoner is left at one hit point and the being disappears, removing all buffs granted by this spell. The dark runes remain until the summoner takes a long rest or remove curse is cast on them to remove them. The summoner only regains half from all healing while the runes are there. This includes hit dice, healing spells, potions, etc. This spell lasts until the caster dismisses the spell or is reduced to 1 hit point.