Boule

These constructs resemble a living ingot of synthesized crystal. Wizards create boules through a ritual that grows a synthetic crystal and captures a spark of elemental life force to give it intelligence. The result is a roughly humanoid crystal with a dutiful demeanor and even more curious magical properties. Wizards with boule companions insist that the creatures display unique personalities through their energetic movements. They vibrate when happy, become more dense when sad, and are almost magnetically attracted to objects they find interesting. Left to themselves, boules enjoy playing with light sources, refracting dancing rainbows on the surfaces around them.

Spell Prisms. Boules have the ability to split spells cast on them, or through them, so that spells with one target now have two. Boules made of more rare crystals can also subtly shift the effects of these spells in surprising ways, such as refracting one type of energy into another.

Spell Eaters. Boules enjoy being around magical energies, and even having spells pass through them. They feed by absorbing a portion of this energy.

This makes them natural companions for wizards who think organic familiars require too much attention. Their disposition seems to depend on both their crystal type and the sort of magical energy they absorb. Boules are always excited by the opportunity to experience unfamiliar spell effects. Fortunately, given that, their crystalline structure makes them quite durable. It is said that the first boule ever created is still in existence, having served many generations of mages in succession.