Shifter

As a bonus action, you can assume a more bestial appearance. This transformation lasts for 1 minute, until you die, or until you revert to your normal appearance as a bonus action. When you shift, you gain temporary hit points equal to your level + your Constitution modifier (minimum of 1 temporary hit point). You also gain benefits that depend on your shifter subrace, described below. Once you shift, you can’t do so again until you finish a short or long rest.