Die-angle

Choose three points in range that you can see. A ghostly glowing yellow triangle is formed between these points, provided they are not behind total cover from each other.

When a creature enters the triangle for the first time on a turn or starts its turn there, it must make a Constitution saving throw. It takes 4d12 necrotic damage on a failed save, or half as much damage on a successful one.

On each of your turns after you cast this spell, you can use a bonus action to move any one of the points up to 30 feet in any direction.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d12 for each slot level above 3rd.