Teklys' Draconomorphosis

You transform yourself into a dragon form. The new form can be any dragon with a challenge rating no higher than the target's level or CR. The transformation lasts for the duration, or until you drop to 0 hit points or dies.

Your game statistics, including mental ability scores, are replaced by the statistics of the chosen dragon, though you retain your alignment and personality. You assume the hit points of its new form. When you revert to you 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 the nature of your new form, and you can't speak, cast spells, or take any other action that requires hands or speech unless your new form is capable of such actions.

At higher level: When you cast this spell using a spell slot of 9th level, the duration increases to 24 hours.