Star Fission

You have trained your Celestial Revelation to extract the starlight from your body, destroying spell slots and empowering your body in the process.

When in your Celestial Revelation, at the start of each of your turns you regain 1 expended ki point. If your Celestial Revelation ends while you have any spell slots, you can expend one spell slot to extend your Celestial Revelation by a number of turns equal to the level of spell slot expended.

In addition as a bonus action while in your Celestial Revelation you can expend a spell slot to gain 8 temporary hit points per level of spell slot. These temporary hit points last until you take a long rest.