| Spell detail | Rule |
|---|---|
| Level | 4th |
| School | Transmutation |
| Class | Ranger |
| Casting Time | Standard Action |
| Range | 120 feet |
| Components | V, S |
| Duration | Concentration, up to 1 minute |
| Attack | None |
| Save | Dexterity, half damage |
| Spell Resistance | Yes |
Thorns erupt across a 20-foot-radius area of ground you can see. A creature that enters the area for the first time on a turn or starts its turn there takes 4d6 piercing damage (Dexterity save for half). The area is difficult terrain. The thorns do not harm you or creatures you designate when casting the spell.