Slight Polymorph (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Components:||V, S, M (a piece of a caterpillar cocoon)|
|Duration:||Concentration, up to 1 minute|
This spell transforms you into a new form.
The transformation lasts for the duration, or until you drop to 0 hit points or die. The new form can be any beast whose challenge rating is 0. Your game statistics, including mental ability scores, are replaced by the statistics of the chosen beast. You retain your alignment and personality.
You assume the hit points of your new form. When you revert to your normal form, you return to the number of hit points you had before you transformed. If you revert as a result of dropping to 0 hit points, any excess damage carries over to your normal form. As long as the excess damage doesn't reduce your normal form to 0 hit points, you aren't knocked unconscious.
You are limited in the actions you can perform by nature of your new form, and you can't speak, cast spells, or take any other action that requires hands or speech.
Your gear melds into the new form. You can't activate, use wield, or otherwise benefit from any of your equipment.