Black Hole

Creates a large gravity well that sucks in all creatures within a mile cone. Requires 1 action to prepare. Creatures pulled in take 10d20 necrotic damage. After the vacuum stops, all creatures that survived, and all creatures within a 6 foot radius (including the caster) are thrown 20 feet in random directions and are knocked unconscious.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 5d20 for each slot level above 9th.