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I was trying to cast prestidigitation on a guard behind his back and my DM said that he would definitely know I did it because the verbal part of the spell would be in a loud voice. He also said that the somatic part would be flashy and with grand movements of the hands. How loud does the verbal need to be and how flashy are the gestures?


marked as duplicate by goodguy5, NautArch dnd-5e Feb 13 at 15:00

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It is up to the DM, but they are noticeable.

In 5e nowhere does it define anything specifically defining the volume of spells or how grand gestures have to be. These kinds of details are left entirely up to the DM to decide.

Verbal (V)

Most spells require the chanting of mystic words.


Somatic (S)

Spellcasting gestures might include a forceful gesticulation or an intricate set of gestures. [...]

This is all the detail we get from the rules. It is worth noting that the rules do even say that there is a potential range of how obvious the somatic component might be, so it may even depend on the spell. In the end, your DM will have to decide how they want it to work in their world.

Jeremy Crawford has shed some light on the intent for verbal components though (in an old unofficial tweet):

The verbal component of a spell must be audible to work. How loud is audible? That's up to the DM.

One thing is sure though: both the verbal and somatic components are definitely noticeable however. We know this because there is at least one class feature, a Sorcerer's Subtle Magic metamagic, whose only purpose is to make them not noticable:

When you cast a spell, you can spend 1 sorcery point to cast it without any somatic or verbal components.


Flashy/loud enough to always be noticed

The reason I say this is because there is a specific mechanic option that removes those components from notice: the Sorcerer's Subtle Spell Metamagic:

When you cast a spell, you can spend 1 sorcery point to cast it without any somatic or verbal components.

Simply allowing any caster to 'hide' their components completely minimizes this class feature.

As long as the components are heard/seen, then the DM/player can decide together an appropriate volume/flashiness. The volume/movement isn't mechanically important here - it's just that the somatic/verbal is always noticed.

Noticing vs understanding

However, just because they notice you've cast a spell doesn't mean they know what you've cast. Xanathar's contains some optional rules that cover identifying spells.

  • \$\begingroup\$ I was not asking if he would notice the spell. I was asking how loud the verbal is and how flashy the somatic. \$\endgroup\$ – Eternallord66 Feb 13 at 14:53
  • \$\begingroup\$ @Eternallord66 Gotcha - adjusted my headline. \$\endgroup\$ – NautArch Feb 13 at 14:54

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