Bone Guardian

You curl your finger and skeletal arms begin to crawl their way from beneath the ground in a 20 foot radius on a radius centered on a point within range. For the duration, the area is considered difficult terrain. When a creature starts its turn or moves into or within the area, it must succeed on a Dexterity saving throw or be grappled. At the start of a grappled creatures turn, it can make a Strength (Athletics) check contested by your spell save DC to break the grapple. Any creature that can reach the grappled target can use it’s action to attempt break that target’s grapple by succeeding on a Strength (Athletics) check against your spell save DC.