Heightened Metabolism

Additional Monk Feature - Replaces Quickened Healing - 4th level

As an action, you can momentarily meditate. You can expend up to a number of Hit Die equal to your proficiency bonus to regain hit points, and you roll one Martial Arts die, regaining an amount of Ki points equal to the result, rerolling a 1 on the Martial Arts die until the result is higher. You can use this feature once per long rest.