Karpalima Elf (5e Subrace)
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Karpalima elves are natural tricksters who enjoy pulling elaborate pranks.
Ability Score Increase. Your Charisma score increases by 1.
Shapechanger. As an action, you can polymorph into any humanoid of your size that you have seen, or back into your true form. However, your equipment does not change with you. If you die, you revert to your true form. You retain all of your normal statistics while in this form. You may use this feature once without issue, however, additional uses after the first incur one level of exhaustion. You must complete a long rest to use this trait again without issue.