You gain a +1 bonus to ranged weapon attack rolls.

Deep Breathing- You may spend your bonus action to grant a +10 bonus to your next attack roll. You can not use this ability again until you complete a long rest.

Exert- You push yourself beyond your normal abilities.  At the start of your turn, you may treat all attacks you make that hit as a critical hit for that turn. While making attack rolls that turn, if you roll a number on the d20 that would result in a critical hit, you may treat all damage dice rolled for that attack as their maximum values rolled. At the end of that turn, you gain 3 levels of exhaustion.