Cursed Technique, Overtime and Ratio

Overtime Technique: Your ability to push beyond
your limits grants you enhanced combat prowess.

Overtime Activation: As a bonus action you can
enter Overtime. For the next minute. you gain
an advantage on attack rolls, and your weapon attacks
deal an additional 1dé damage.

• Overtime Fatigue: After Overtime ends you must
  succeed on a Constitution saving throw (DC 12)
  or suffer one level of exhaustion

Ratio Technique (7:3): Your training has honed your
ability to find and exploit weaknesses in your foes

7:3 Activation: Once per long rest you can invoke
the power of your 7:3 technique. For one minute, in
addition to your standard attack roll, you may roll
1d10. If you roll a 3 or 7, that attack acts as a critical
hit.