What is a discipline wand?

There isn't a commonly recognized object or concept called a "discipline wand." It's possible that this phrase is:

* A made-up term: Perhaps you encountered it in a fictional story, game, or other creative work.

* A specific term within a certain context: It might be used within a particular community, group, or specific field.

Could you provide more context?

For example, where did you come across this term? What kind of context was it in? This information would help me understand what you're looking for.