Crimson whorlpool

A portal in the floor opens up and a whirlpool made out of blood comes out engulfing all whiten its range

appears in a 60-foot radius centered on a point you can see within range. The point must be on the ground. Until the spell ends, that area is difficult terrain, and any creature that starts its turn there must succeed on a Strength saving throw or take 6d6 bludgeoning damage and be pulled 10 feet toward the center and be grappled.