| Spell type | Defensive buff (green spell) |
| Requires | Earth Magic 1+ or Earthborn Adept |
| Enhanced by | Earthborn Adept count as 5 ranks |
| Casting time | 2 seconds |
| Duration | 60 seconds (modified by green magic), +10 per rank |
| Enhanced mana cost | 10 mana makes duration permanent |
Barkskin is a defensive buff which gives the Defensive Shield bonus (but not Enhanced Shield, so you’ll want to use forcefield as well).
The barkskin gives you a base bonus of +10 Defence, or +15 if the spell is enhanced. Your green magic is then applied as a percentage modifier, and the result is increased by a further +5 per rank. You also get a Resistance bonus equal to half of the final Defence bonus.