Thorn Bind Hostage

You conjure a group of ten vines that sprouts from the ground to entangle a creature that you can see within range. That creature must succeed on a Dexterity saving throw or be restrained.

When the creature is hit by a melee attack, one vine detonates and takes an additional 1d10 force damage. When all the vines have been detonated, the creature takes an additional 10d10 force damage.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, you may target an additional creature and the damage increases by 1d10 for each slot level above 6th.