# Mage Slayer *Source: Player's Handbook (2024) p. 205* **Prerequisite**: 4th You gain the following benefits. ## Concentration Breaker When you damage a creature that is [Concentrating](conditions.md#Concentration), it has Disadvantage on the saving throw it makes to maintain [Concentration](conditions.md#Concentration). ## Guarded Mind If you fail an Intelligence, a Wisdom, or a Charisma saving throw, you can cause yourself to succeed instead. Once you use this benefit, you can't use it again until you finish a Short or Long Rest.