Transmutation
| Level: | Druid 2, Ranger 2, Summoner 2, Plant 2 |
| Components: | V, S, DF |
| Casting Time: | 1 standard action |
| Range: | Touch |
| Duration: | 10 minutes/level |
| Saving Throw: | None |
| Spell Resistance: | Yes (harmless) |
Barkskin toughens a creature’s skin. The effect grants a +2 enhancement bonus to the creature’s existing natural armor bonus. This enhancement bonus increases by 1 for every three caster levels above 3rd, to a maximum of +5 at caster level 12th.
The enhancement bonus provided by barkskin stacks with the target’s natural armor bonus, but not with other enhancement bonuses to natural armor. A creature without natural armor has an effective natural armor bonus of +0.