Abyssal Rift

You call upon abyssal forces to tear through a rift that opens in a 60-foot cube centered on a point you can see within range. Each creature in the area when the rift opens must make a Dexterity saving throw. On a failure, a creature falls into the rift and takes 6d6 Bludgeoning damage. On a successful save, a creature takes half as much damage. Loose objects wholly within the space of the opened rift fall into the rift and take the same damage. 
As a Bonus Action on subsequent turns, you can cause tentacles to reach out from the rift and target one creature you can see within 60 feet of the rift. You make a melee spell attack. On a hit, the target is Grappled and you pull the target 30 feet closer to the rift. If a target ends its turn in the rift’s space, The target is pulled into the rift. If a Grappled target starts its turn outside the rift, it can use its Action to attempt a Strength (Athletics) or Dexterity (Acrobatics) check against your spell save DC to end the Grappled condition. 
When a creature starts its turn inside the rift, it must make a Constitution saving throw, taking 6d6 Necrotic damage and 6d6 Psychic damage on a failed save, or half as much damage on a successful one. 
As an Action, a creature in the rift can attempt a Strength (Athletics) or Dexterity (Acrobatics) check against your spell save DC. On a success, a creature escapes the rift and enters an unoccupied space adjacent to the rift. 
At the end of the spell’s duration, the rift closes. Anything still trapped inside the rift when it closes is teleported to a random layer in the Abyss. All that remains of the rift is a permanent scar on the ground where it formed. If the spell ends early, all creatures and objects in the rift are expelled in the nearest unoccupied spaces around the rift, landing with the Pro e condition.