Invulnerability

Invulnerable is a term used to describe enemies who are meant to be invincible. These enemies cannot have skills used against them, cannot be attacked, do not take damage, and do not suffer from degeneration. If you attempt to attack them or use a skill on them, an error message will be displayed saying "You cannot attack. (Invulnerability)". They can, however, be affected by conditions and Life stealing. Skills used against Invulnerable creatures don't even activate, and thus cost no energy cost and do not recharge.

List of Invulnerable creatures

 * Oink in Gates of Kryta.
 * Shiro in Sunjiang District.
 * Vengeful Aatxes during the quest Unwanted Guests.

Conditions which affect Invulnerable creatures

 * Blind
 * Weakness
 * Cripple