Brambles

Spell Lists: Druid, Ranger
1st-level conjuration
Casting Time: 1 action
Range: 60 feet
Components: V, S, M (a sharp thorn or a sharpened twig)
Duration: Concentration, up to 1 minute
An intangible nature spirit appears in a space which is a 5-foot cube within range. It has the appearance of a beast or monstrosity twisted together out of thorny brambles. As a bonus action on your turn, you can move the spirit up to 30 feet to a space you can see. The ground within 30 feet of the spirit is covered in ghostly brambles. Whenever a creature in the area is knocked prone, the spirit deals 2d4 slashing damage to it. The spirit disappears after dealing damage a number of times equal to 1 + your spellcasting modifier (minimum of twice).

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d4 for each level above 1st.