Speedforce

You are able to tap into the elemental plane of lightning to fuel your actions and push your body past its limits.  You gain 4 charges per day, each charge can be used to cast one of the following spells on yourself at the cost of one charge per spell level: Freedom of Movement, Haste, Cat's Grace.  Each time you cast a spell this way you take 1D6 lightning damage per spell level as your body takes in the energy, each spell lasts the full time and does not need concentration to maintain as it is powered from a separate source.  You can gain an additional 4 charges as a bonus action but at the cost of a level of exhaustion.