Chibi Spirits

Chibi Spirits (禿び スピリッツ chibi supirittsu), are tiny magical beings from their own mysterious universe, the Chibi Spirit World. Mages, called Chibi Spirit Mages, are able to summon spirits by various means.

All Chibi Spirits have a magic that allows them to take the form of their human-self by decades. The more decades they use, typically, the more magical power they use. It is rare for a Chibi Spirit to have more than one Decade-Form.

Trivia

 * Chibi Spirits were inspired by the Chibi's off of  Katekyō Hitman Reborn!.