The Charm Person spell description says:

When the spell ends, the creature knows it was charmed by you.

There is an ambiguity here — does this happen only if the target failed on the saving throw, or the result of the saving throw is irrelevant?

For the sake of simplicity, let's say the target didn't see the spellcasting act itself. According to the rules, it still "knows it was charmed". Does this happen if the target succeed on the saving trow?

On the one hand, the spell ends, so the target should "know it was charmed". On the other hand, one might argue the spell never took effect, so literally nothing happens when the saving throw is succeeded.

  • 2
    \$\begingroup\$ Somewhat related questions: "When does a target know it's under the effects of a charm/enchantment spell?" and "Do monks know when they are charmed?" and "Is Charm Person obvious?" \$\endgroup\$ Commented May 2, 2020 at 13:37
  • \$\begingroup\$ @enkryptor I wasn't looking at the answers, but the question. The main title isn't quite it, but the body does ask your question. If the answer isn't sufficient, shouldn't we bounty it? It specifically asks "Are there differences if a target fails or succeeds on a save roll?" That seems like a dupe. \$\endgroup\$
    – NotArch
    Commented May 3, 2020 at 12:46
  • \$\begingroup\$ @NautArch I still don't think it's a duplicate. The linked question asks literally "which spells, like Suggestion, are not noticeable, and which are noticeable by the target and/or nearby onlookers", and the title is "When does a target know it's under the effects of a charm/enchantment spell?". But my question is something like "when does a target know it was under the effect of the Charm Person spell". So it's about repercussions of the spell. It is also about a specific phrase in the specific spell description. How can I edit the question in order to convey this? \$\endgroup\$
    – enkryptor
    Commented May 3, 2020 at 15:25
  • \$\begingroup\$ Possible duplicate contains the same question: When does a target know it's under the effects of a charm/enchantment spell? \$\endgroup\$
    – NotArch
    Commented May 3, 2020 at 17:51
  • 1
    \$\begingroup\$ Meta question about duplicate status is here: Is this question on charm targets knowing a charm was cast on them a duplicate? \$\endgroup\$
    – NotArch
    Commented May 3, 2020 at 18:00

2 Answers 2


The creature does not know.

According to the spell description and the specific scope of this question, creature knowledge is dependent upon the Charmed condition.

From the Charm Person spell, with emphasis placed where the text calls for the Charmed condition:

The charmed creature regards you as a friendly acquaintance. When the spell ends, the creature knows it was charmed by you.

The spell description says that for you to know that you were charmed, you have to have experienced the Charmed condition. This is reinforced by the word was, which shows that the condition must have existed in the past. Not that the condition almost existed (you made your save), but that it actually did.

There are obviously many other ways that the target of a Charm Person spell who made a successful save could know that a spell was attempted. "Is Charm Person obvious?" addresses these cases. I am only answering the specific question of whether succeeding on a save alone lets a target become aware that a Charm was attempted.

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    \$\begingroup\$ What prevents someone from knowing something that is false? That is, if the spell was successfully cast, yet for some reason didn't inflict the charmed condition, it would seem that the target nonetheless becomes completely convinced (erroneously) that it was charmed by you. Is there something that ties the being convinced to the actually happening so that this would not occur? \$\endgroup\$ Commented May 2, 2020 at 18:11
  • \$\begingroup\$ There's certainly possibilities and scenarios where a target becomes convinced erroneously, but that would be more in the realm of RP w the DM than it would be in the scope of this question. In fact, I'd think things like that would make great adventure hooks! \$\endgroup\$
    – aaron9eee
    Commented May 2, 2020 at 19:23

It doesn’t know it was targeted or what the spell was but it generally knows a spell was cast

Unless a spell has a perceptible effect, a creature might not know it was targeted by a spell at all. An effect like crackling lightning is obvious, but a more subtle effect, such as an attempt to read a creature's thoughts, typically goes unnoticed, unless a spell says otherwise.

Casting a Spell

Charm Person is both a spell without a perceptible effect and one that “says otherwise” - specifically that a creature that failed the saving throw knows at the end. It follows that a creature that did save doesn’t know it was the target.

In general, unless a spell caster attempts to conceal the spell casting in some way, it’s obvious that they have are doing so - otherwise, it would be impossible to use Counterspell. Examples of concealment would include the Sorcerer’s Subtle Spell meta magic, casting from a hiding place, casting from within a rowdy crowd or on a dance floor etc. Each situation needs to be judged by the DM on its merits as to whether it succeeds or fails or if an ability check is called for and, if so, which one.

Most creatures would interpret unannounced spell casting as they would unannounced weapon drawing - as a hostile act.

  • \$\begingroup\$ I didn't ask if the spellcasting act itself is perceptible. There is another question about this — rpg.stackexchange.com/questions/76286 . My question was exclusively about the reading of the "knows it was charmed" rule. Edited for clarity. \$\endgroup\$
    – enkryptor
    Commented May 3, 2020 at 12:34

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