Thorn vine

You summon a thorny, slippery vine that attempts to constrict and crush an enemy. Make a magic attack roll against the target's Fortitude DC. If successful, the creature is grappled and takes 2d6 piercing damage. At the end of that creature's turn, if it is still grappled by the vine, it takes 2d6 bludgeoning damage.

An Escape DC from the vine is equal to your spell DC. A creature may attack the vine in an attempt to break free. The vine's AC is equal to your spell DC, and the vine is destroyed if it takes 20 or more damage. Destroying or escaping the vines ends the spell.