This spell is a part of the Oaken Skin spell chain and can be found in the Oaken Skin rune stone.
This spell coats its benefactor with a protective barrier of thorns. You cannot harm yourself with these thorns, however, anyone who melee attacks you will receive double the caster's runic power damage, with 10% of the damage going straight to Vitality. This coat of thorns, while it acts as an armor or protective spell, also counts as a weapon. This means you can apply spell effects such as Deadly Sap or Pyro Enchantment to it for greater effect.
Armor Effect: Skin of Thorns (Body Armor Only)
This grants your body armor the ability to have weapon affecting spells such as Deadly Sap or Pyro Enchantment applied on it, granting your armor those spells effects.
Whip of Thorns