Mage Slayer

You gain the following benefits.

Concentration Breaker

When you damage a creature that is Concentrating, it has Disadvantage on the saving throw it makes to maintain 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.