Here are some common indefinite pronouns:
* Someone, anyone, everyone, no one (refer to people)
* Something, anything, everything, nothing (refer to things)
* Somebody, anybody, everybody, nobody (refer to people)
* Something, anything, everything, nothing (refer to things)
* Some, any, all, none, many, few, several, both, either, neither (can refer to people or things)
The terms "magic" and "indefinite" are not typically used together in the context of grammar. If you're looking for a specific concept, it's helpful to provide more context or examples.