Immunobreak

Failing to land spells from the Enfeebling Magic class multiple times may lower the target enemy's resistance. This feature is known as "Immunobreak."
 * An Immunobreak may occur after an enemy has resisted a particular enfeebling spell. When an Immunobreak occurs, the enemy's resistance to that effect decreases by a certain amount.
 * Immunobreaks can stack and continually lower an enemy's resistance.
 * The more times the enfeebling spell is resisted, the greater the likelihood that an Immunobreak will occur.
 * When the enfeebling effect is successfully applied, the enemy's resistance resets.
 * If the effect is continuously applied, the enemy slowly gains more resistance, and eventually Immunobreaks can no longer occur.
 * Some monsters have complete resistance to enfeebling effects.
 * An Immunobreak cannot occur if an enemy has complete resistance to the particular enfeebling spell being cast repeatedly.
 * A log message appears when a monster resists an enfeebling spell that allows the player to determine whether a monster possesses complete resistance to a particular type of enfeebling magic.
 * Immunobreaks only apply to spells based on Enfeebling Magic skill.