Veltrix's Vicious Vines

Two thorn covered vines sprout from the tattoos reaching up to 30ft in length, these stay in your control while you maintain concentration or until dispelled. If you lose concentration the vines will attack the nearest creature other than the caster, if there is no other creature the caster becomes the target. The spell can be dispelled the following round once concentration is lost.

Once per turn the caster can attack twice with the vines, each vine has your spell casting modifier + your proficiency bonus when attacking. On a hit, the creature takes 3d8 + 3 piercing damage.

When you cast this spell using a spell slot of 4th or higher level, the damage increases by 1d8 + 1 for each slot level above 3rd.