Assuming one's character is 1 foot or smaller (either naturally or through some other ability, e.g. Alter Self), and then use Disguise Self to [...] seem 1 foot shorter [...], would this character effectively disappear?

As an illusion, it would not change the physical aspect (the character would still exist in the same 3D space), just how the character is perceived. But other than that, how close of invisibility would that be?

Socially, how would you handle that situation - like an invisible character?

In combat, what advantage would this gives? Full cover? Advantage on attack and/or defense? Sneak attack?

Alter Self:

Change Appearance. You transform your appearance. You decide what you look like, including your height, weight, facial features, sound of your voice, hair length, coloration, and distinguishing characteristics, if any.

Disguise Self:

You can seem 1 foot shorter or taller and can appear thin, fat, or in between.

PHB 195:

When you attack a target that you can't see, you have disadvantage on the attack roll.

When a creature can't see you, you have advantage on attack rolls against it.

Related: Question Regarding Disguise Self and Height (Reddit)

  • \$\begingroup\$ Welcome to RPG.SE! Take the tour if you haven't already, and check out the help center for more guidance. \$\endgroup\$
    – V2Blast
    Nov 5, 2019 at 9:34

1 Answer 1


1 foot less than 1 foot is 0 feet. It would not make you invisible.

A character that managed to do this would just look flat.

When attempting to Hide your DM gets to decide what is a valid hiding spot. I wouldn’t read Disguise Self as doing anything other than “seeming” to modify your height, so it wouldn’t help you hide. With Alter Self you could become flat, which may help you hide somewhere you otherwise couldn’t. Similarly you may be able to be blocked by cover more easily. Other than that, there is no benefit in combat.

Socially you would draw a lot of attention for your strange appearance. Again, this would be up to the DM whether you are regarded as a curiosity or an abomination.

  • \$\begingroup\$ @Medix2 Disguise Self is an "Illusion" spell that makes you "look different", including the ability to "seem" taller or shorter or "appear" then or fat. Nothing about you actually changes, merely how you are percieved. On the other hand Alter Self is a "Transmutation" spell that lets you "assume a different form" including "sprouting gills, and growing webbing", you can "change your appearance", and you can "grow" natural weapons. Your physical form is changed by the spell. Disguise Self means people see you differently, Alter Self lets you actually change. \$\endgroup\$ Nov 5, 2019 at 1:11
  • \$\begingroup\$ Oh you're saying it wouldn't help with hiding into an ordinarily too small space, I see, comment removed \$\endgroup\$ Nov 5, 2019 at 2:12

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .