What is the "real name" in fantasy literature such as DND?

You can understand that every creature has its own number, and the number of all creatures is different. That is to say, although the name is "hobgoblin warrior", it is only a title, and each hobgoblin warrior is a different individual. "Real name" is such a thing. When you know a creature's "real name", you release a spell. The target of this spell will only be the creature corresponding to your "real name". This spell is the "real name spell".

As for interaction, I remember that there is a special "real name" spell list in an extension of DND, and all the spells in it need to know the "real name" of a target before they can be released. Pure beauty apple orchard (a DND forum) should have it, and you can search for "real name" in the forum.

I can only help you so much. . .