Castle of Stone

Castle of Stone is a Guardian skill.

Description
This is a special defensive skill available only to Guardians. Once the spell is cast, the user is surrounded by a yellow light and is invulnerable to attacks (does not take damage). However, he is also completely immobilized for the duration of the skill. This spell only lasts for ten seconds, and because its cooldown time is ten minutes, it is generally viewed as an emergency defensive measure that can only be used once in a particular battle.