Tepes' Tempest

As part of casting this spell, you roll two hit die and take the rolled total in necrotic damage (this damage cannot be reduced in any way.) You then smash a vial of your blood into the ground, creating a sinister rune in a circle at your feet. As you complete the incantation, spears of sanguine energy erupt from the circle, seeking out creatures of your choice within range.The spears impale their targets, holding them aloft and siphoning their blood.

When you cast this spell. all creatures of your choosing within a 15-foot radius circle centered on you must make a Strength saving throw or take 4d8 piercing damage on a failed save, or half as much on a successful one.

Additionally, any creature that fails the saving throw is restrained by the impaling spears and lifted 5 feet off the ground until the end of their next turn. A restrained creature can repeat the saving throw at the start of each of its turns, ending the effect on itself if it succeeds.A creature that fails its saving throw and is still restrained at the end of its turn takes 2d8 necrotic damage as the blood-hungry spears drain it of vitality.

While concentrating on this spell, you can use an action on subsequent turns to cause additional spears to erupt again on any creature within the radius of the spell, potentially impaling new targets.

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