Initiate Overclock Protocol

You push yourself beyond all safety parameters and limiters. As an action you may Initiate Overclock Protocol placing you in the "overclocked state". While overclocked you gain the effects of the haste spell and can cast spells using the extra action gained from this effect. In addition you may cast spells without using spell slots if the spell level is equal to or less than your spellcasting modifier. To pay for the mental strain, you gain a stack for each extra action, spell cast (stacks equal to spell level), and a stack for every 10 feet of extra movement gained from the haste effect. The duration lasts for 1 minute unless canceled with an action or you fall unconscious. When the duration ends or if canceled early you immediately take damage equal to twice the amount of stacks you have accrued, additionally, for every 25 stacks you gain a level of exhaustion when the ability ends. You also suffer double the ending effects of the end of the haste spell (two turns of no movement or action). 

This ability can be used once per long rest.