Wall of Tentacles

You create a wall of purple-brown stone with a rough texture, that tentacles and large bird-like beaks extrude from to assault nearby creatures. The wall appears within range and lasts for the duration. You choose to make the wall up to 60 feet long, 10 feet high, and 5 feet thick, a circle that has a 20-foot diameter and is up to 20 feet high and 5 feet thick, or a solid sphere that has a radius of 10 feet. The wall blocks line of sight.

When the wall appears, each creature within 15 feet of the wall must make a Strength saving throw as large otherworldly tentacles lash out at nearby prey. On a failure, a creature is grappled and is pulled to the nearest adjacent unoccupied space next to the wall. A grappled creature is restrained and takes 3d10 bludgeoning damage at the start of its turn as tentacles lash out and assault it, remaking it's strength saving throw at the end of each of its turns, ending the grapple on a success. A creature that was not already grappled, that ends it's turn within 15 feet of the wall, must make this saving throw as well or be grappled and pulled to the nearest adjacent unoccupied space next to the wall.

Until the spell ends, you can use an action to have large bird-like beaks, covered in a deadly poison, attack each creature grappled by its tentacles. Make a melee spell attack against each creature restrained by the spell. On a hit, the target takes 1d8 piercing damage and must make a Constitution saving throw. On a failure, a creature takes 3d6 poison damage, or half as much on a success.