Boon of the Iron Mind (Dexterity)

You gain the following benefits.

Ability Score Increase. Increase one ability score of your choice by 1, to a maximum of 30.

Unshakable Focus. When you are maintaining Concentration on an effect, you lose Concentration only if you cast a spell or activate another effect that requires Concentration, if you have the Petrified or Unconscious condition, or if you die.