Crimson Stakes of Blood

As part of casting this spell, you stab the dagger into your stomach and take 3d10 piercing damage. This damage can’t be reduced or prevented in any way.

Choose a point you can see within range. The instant you stab the dagger into yourself, stakes of hardened, crystallized blood erupt from beneath the creatures in a 20-foot-radius, 20-foot-high cylinder centered on that point and impale them.

Each creature of your choice in the cylinder must make a Dexterity saving throw. On a failed save, a creature takes 6d8 piercing damage and is restrained by a hardened blood stake for the duration. On a successful save, the creature takes half as much damage and isn’t restrained.

The stakes remain fixed in place for the duration. At the start of each of its turns, a creature restrained by this spell takes 2d8 piercing damage.

A creature restrained by this spell can use its action to make a Strength (Athletics) check against your spell save DC. On a successful check, the creature breaks free and is no longer restrained by the spell. The restrained condition also ends on a creature when the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the initial piercing damage increases by 1d8 for each slot level above 5th.