shadowoflameth
Adventurer
New Question. Can you use True Polymorph on yourself?
It is also useful for storing captured enemies indefinnitely as objects.The true use of True Polymorph is to creature new creatures IMHO. Everything else is gravy
Shapechange allows you to switch forms. True Polymorph does not.
Shapechange allows you to retain your alignment and Intelligence, Wisdom, and Charisma scores. You also retain all of your skill and saving throw proficiencies, in addition to gaining those of the creature. If the creature has the same proficiency as you and the bonus listed in its statistics is higher than yours, use the creature's bonus in place of yours. You retain the benefit of any features from your class, race, or other source and can use them, provided that your new form is physically capable of doing so. You get the best of both world's basically.
With True Polymorph, your game statistics, including mental ability scores, are replaced by the statistics of the new form. You retain your alignment and personality only. You lose your spellcasting abilities, although you may retain the ability to concentrate on an existing spell (if someone else casts this on you - if you cast it on yourself, you can concentrate on it). Essentially you become the target creature.
True Polymorph can become permanent while Shapechange ends after an hour.
My response was to the immediately prior comment, primarily:While all true, completely irrelevant to the question about applying to ones self. Are you for example, implying a caster could use True Poly on themselves to gain a permanent change? That seems sketchy at best to me.
My response was to the immediately prior comment, primarily:
Of course they can cast it on themsleves, maintain concentration for an hour and make it permanent. However, they can't just dismiss it. They have to 'injure themselves out' or get it dispelled.
See: https://www.sageadvice.eu/2014/09/01/true-polymorph-self/