Abyssal Reach

You are suddenly surrounded by a pool of total darkness. A second dark pool appears on the ground at a point you choose within range. Each creature in a 10-foot-radius 10-foot-high cylinder centered on that point must make a Strength saving throw, as tentacles rise up to claim them. A creature takes 3d6 psychic damage and falls prone on a failed save. On a success, they take half as much damage and do not fall prone. As quick as they came, the dark pools then disappear.

At Higher Levels: When you cast this spell using a spell slot of or higher, the damage increases by 1d6 for each slot level above 2nd.