Let's say we have a level 20 human wizard named Dumbledore. Dumbledore is wicked old. Dumbledore would like to not die of old age, as he has a few enemies left to take care of. Can Dumbledore cast True Polymorph on himself, concentrate for the full duration, and permanently de-age himself into

  1. A younger version of any other creature
  2. A long-lived creature (dragon, elf, etc)

And if yes to any of these, will this permanent transformation extend Dumbledore's lifespan? Would doing so permit Dumbledore to repeatedly cast True Polymorph and never die of old age?

Note: Dumbledore could obviously still die of other causes, such as Power Word: Kill cast by a talented former student.


4 Answers 4


Yes you can. The spell never makes any specific claims about the age of a creature, only its challenge rating.

If you turn a creature into another kind of creature, the new form can be any kind you choose whose challenge rating is equal to or less than the target’s (or its level, if the target doesn’t have a challenge rating). [PHB 283]

So you could turn yourself into an elf or similarly long-lived creature which is also a level 20 wizard.

If you wanted to turn yourself creature like a dragon with the intent of doing this repeatedly, you need to be sure to note the spell casting abilities of your new form. From the spell description:

"The creature is limited in the actions it can perform by the nature of its new form, and it can’t speak, cast spells, or take any other action that requires hands or speech unless its new form is capable of such actions." [PHB 283]

If you choose a creature that can innately spellcast (or it has hands and can speak), then this isn't a problem.

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    \$\begingroup\$ I realized addressing my first example should be a question in and of itself; I edited it out of this question. rpg.stackexchange.com/questions/64578/… \$\endgroup\$
    – Taejang
    Commented Jul 9, 2015 at 15:39
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    \$\begingroup\$ Note that you cannot change your age, which was the primary question so "Yes you can" may be a bit off... His point (1) is a resounding NO. Because you cannot change the «age characteristic». \$\endgroup\$ Commented Sep 1, 2016 at 20:01
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    \$\begingroup\$ @AlexisWilke why can't they change the age characteristic? \$\endgroup\$ Commented Sep 1, 2016 at 20:15
  • \$\begingroup\$ A creature can assume a younger form. But why do you imply the true form won't age? There is no RAW says that your true form resides in stasis while you are polymorphed. \$\endgroup\$
    – enkryptor
    Commented Dec 29, 2016 at 11:25
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    \$\begingroup\$ @stommestack Under these circumstances, it might make sense to distinguish biological age and chronological age. In real life, they are almost always the same, but if you introduce magical or technological de-aging techniques they will differ (and if you talk about relativistic time dilation it just gets weird). As I read the spell description, true polymorph could change the biological age of a creature with some limitations around changing it so much it would affect the challenge rating. \$\endgroup\$ Commented Dec 14, 2021 at 22:39

Probably, no

True Polymorph transformation isn't actually permanent.

RAW it is still "a creature transformed by magic", so the permanent transformation still can be dispelled, through the Dispel Magic spell or an antimagic field. When you are permanently polymorphed, a creature with Truesight can still see your true form.

All these things indicate that a polymorphed creature still has its true (but somehow hidden) form. Another evidence is that Power Word Kill affects the true form, not the assumed one.

Being polymorphed into a yonger being doesn't automatically prevent your true form from aging. RAW imply it will age, because there is no rule that says your true form resides in stasis while you are polymorphed. However, rules don't clarify this point explicitly, so I suggest to figure it out by using the general RAI idea about aging.

Can D&D magic prevent aging?

Death by old age has special meaning in D&D magic. Even the True Resurrection spell won't work:

True Resurrection
You touch a creature that has been dead for no longer than 200 years and that died for any reason except old age...

nor other spells:

You touch a dead creature that has been dead for no more than a century, that didn’t die of old age...

You touch a creature that has died within the last minute. That creature returns to life with 1 hit point. This spell can’t return to life a creature that has died of old age...

The only spell that can return you from dead in this case is the rare druidic Reincarnation spell, which doesn't return your original body, but gives you a new body (hence, a new true form) instead.

The only potion that actually can make your true form younger is the Potion of Longevity, but it has special condition - you can't drink it for ever, because you will age eventually (straight away, if you're unlucky):

Potion of longevity
When you drink this potion, your physical age is reduced by 1d6 + 6 years, to a minimum of 13 years. Each time you subsequently drink a potion of longevity, there is 10 percent cumulative chance that you instead age by 1d6 + 6 years.

If no magic can easily give you eternal life, why True Polymorph should be different?

It's like the picture of Dorian Gray

Dumbledore could actually try to prolong his life by all the magic means, including the True Polymorph method. How it will ends is up to the DM.

I can suggest the Dorian Gray scenario. Dumbledore assumes an elf form and lives for 200 years. Eventually he loses the assumed form. Maybe a powerful envier casts Dispel Magic on him. All the 200 years return to his original form, turning him into an incredible old man. He died from old age right at the moment.

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    \$\begingroup\$ Does 5e still have those Outsiders that eventually hunt you down if you extend your life too long, too? Because eventually Dumbledore would have to deal with those even if his attempts at eternal life were successful. \$\endgroup\$
    – JAB
    Commented Apr 7, 2017 at 1:05
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    \$\begingroup\$ D&D magic can prevent aging. Specifically, Imprison prevents aging. Thus, if nothing else, you can Magic Jar over to your body of choice, and Imprison your old body (with the "shrunk real small into a handy container" version, and an unlock of "I knock on the wall and ask nice" in case of emergencies). As long as you never return to your old body, your old body never ages. \$\endgroup\$
    – Ben Barden
    Commented Sep 11, 2017 at 15:08
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    \$\begingroup\$ Clone can also be used to reduce your age and circumvent death by old age. But like reincarnation, it does this by giving you a new true body. But for wizards seeking immortality, clone is not something to be overlooked. \$\endgroup\$
    – BBeast
    Commented Jul 6, 2020 at 23:55
  • \$\begingroup\$ Manshoon used his Stasis Clone to avoid death by old age without becoming undead. There is even a 2e description of the Statis Clone spell which describes how it is superior to the regular Clone spell. \$\endgroup\$ Commented Jul 21, 2020 at 18:41
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    \$\begingroup\$ So the Wizard's true form will "age" whatever this means but will this kill the polymorphed form? OP asked "will this permanent transformation extend Dumbledore's lifespan?". I'd figure the answer would be yes. \$\endgroup\$
    – Chebi
    Commented Jun 29, 2021 at 2:49

I will add this to Sam W's answer.

While the following is open to interpretation

Choose one creature or nonmagical object that you can see within range. You transform the creature into a different creature, the creature into an object, or the object into a creature (the object must be neither worn nor carried by another creature)." [PHB 283]

The intent of the spell is to turn the target into a different form whether it living or non-living. The trope that the spell derives from likewise has all manner of things and people turning into different things.

To use the spell to transform the target into a younger version of himself is a more limited use of the spell. Obviously it has benefits in terms of age but going back to the original trope, we have myths and legends where people were transformed into a statue or something and the climax occurred decades or even centuries later.

So given the level of the spell I don't see any issue with using it as a form of anti-aging. In terms of mechanics the spell wordage more concerned with CR and combat effectiveness than this type of use of the spell. On other words of all the implications of this spell the designers are concerned with somebody transforming into a say a dragon and gain all the dragon's powers than the other implication, like anti-aging.

  • \$\begingroup\$ I wonder it the argument could be made that a younger (and thus fitter) version of the wizard, with all the same skills, magical powers and trinkets of his older self, would be a more dangerous foe than the older, more decrepit version of himself and therefore be deserving of a higher challenge rating? \$\endgroup\$
    – RickL
    Commented Jul 16, 2015 at 14:33
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    \$\begingroup\$ @RickLecoat I'd say no. Otherwise, a "young" level 20 elf wizard (who is the same age as an old level 20 human wizard) would have a higher CR. \$\endgroup\$
    – Adeptus
    Commented Jan 25, 2016 at 4:07
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    \$\begingroup\$ Hmm, that’s not quite the argument that I was proposing; I was talking about a situation where the character’s age was the ONLY difference, and everything else between the examples was identical, including personality, life experience, abilities and equipment. You are describing different characters of different races. But I take the point that the RAW do not seem to take age into consideration when calculating CR. Perhaps they should; a lvl 20 wizard who can backflip over my head is more dangerous than an identically-powerful lvl 20 wizard who can't get out of his chair. \$\endgroup\$
    – RickL
    Commented Jan 25, 2016 at 10:53
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    \$\begingroup\$ @RickLecoat if a mage is flipping around the battlefield they probably aren't concentrating on casting spells, that is a distinct weakness. \$\endgroup\$
    – SeriousBri
    Commented Oct 19, 2019 at 9:23
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    \$\begingroup\$ The idea that de-aging should increase CR only applies if aging reduces stats. An old wizard can backflip over you just as easily as a young wizard if the dexterity stat is the same. That doesn't make real world sense, but our stats change with age. D&D stats very much don't, excluding specific cases like dragons. Though changes in stats that could conceivably be due to age would not be enough to change CR anyway, especially not for wizards, whose physical stats are not all that important \$\endgroup\$
    – dig6394
    Commented Apr 7, 2021 at 0:08

The way I understand True Polymorph after research it's not just a form, you become that creature. I'm Dumbledore's case you could True Polymorph into a human, but none of the class features come with you, you are now an "average" human.

I imagine your original form, not existing while polymorphed, wouldn't age. So I would suggest becoming an adult dragon, you then have your choice of forms with dragon Shapechange, and at least 700 more years of life. If your dragon body gets too old or you gain enough xp to hit level 20, find someone to dispel True Polymorph, you change back to Dumbledore, then True Polymorph to adult or Ancient Dragon. Because adult and ancient dragons are listed differently, in this case at least, you could choose age. You do lose class features and spellcasting. I would argue though that a reasonable DM would let a dragon train as a player class. There's no reason a dragon shapechanged to humanoid couldn't learn. And honestly you'd probably be accepting a nerf anyway so why not. With 700+ years and the benefit of your memories dragon Dumbledore should be able to eclipse human Dumbledore. Just maybe take some precautions against that True Polymorph going down unexpectedly.

Antimagic fields would be dangerous. If you kept other enchantments on yourself enemies may be less likely to dispel the polymorph.

Antimagic fields would suppress the polymorph Dispel could ruin progress you'd made(?)

If you start human, Polymorph to dragon, shapechanged to elf I think True Sight would reveal human. It would be a surprise you were a dragon, even to someone with True Sight.

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    \$\begingroup\$ "If you start human, Polymorph to dragon, shapechanged to elf I think True Sight would reveal human. It would be a surprise you were a dragon, even to someone with True Sight." That could be some fun shenanigans there \$\endgroup\$
    – Taejang
    Commented Jun 28, 2021 at 13:15

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