Ensnaring Grasp

The target must succeed on a strength save or be restrained by thorny vines that emerge from the ground. If the save is failed, the target takes 1d6 damage. A large or larger creature has advantage on this saving throw. On a success the magical vines shrivel away and no damage is taken. While restrained the target takes 1d4 piercing damage at the start of each of your turns, until it frees itself or the spell is ended.