Familiar Spirit Magic

Familiar Spirit Magic (おなじみの精霊魔法, Onajimi no Seirei Mahō) can be both a Caster-Type Magic and a Holder-Type Magic depending on the user. NOTE: MAGES CAN ONLY HAVE ONE FAMILIAR SPIRIT. This is because Familiar Spirits require a lot of magic to properly control and more than one guarantees the death of that mage. It should also be noted that the Familiar Spirit will only obey the mage they have a contract with, unless controlled by Play Magic Doll Play Magic.

Description
This magic is used by creating a contract with a spirit. The spirit can then either be manifested into a physical form, fused with the user or fused into an item. The magic that a Familiar Spirit uses is different for each spirit, some can use Fire Magic, Water Magic, Wind Magic ect.

Making a contract with a spirit can be very dangerous, as if the spirit feels that the mage is too weak to be its master the spirit can eat and/or destroy the mage, or the spirit could just leave. The results of a failed attempt at this magic really depends on the spirit the mage is trying to make a contract with.

The Contract is valid until the mage dies, for whatever reason, and the Familiar Spirit is then released until another mage manages to form a Contract with it.

Caster Familiar Spirit
A Caster Familiar Spirit is manifested into a physical form of its own, absorbing ambient magical energy and the magical energy exuded by the mages around it and the magic of defeated opponents. The physical form of the Familiar Spirit varies from mage to mage and can be either an animal, human or anthropomophic. Some Familiars can change between forms at will.

Holder Familiar Spirit
A Holder Familiar Spirit can be fused into any object the mage had on hand at the time of the Contract, from a piece of jewelry to a weapon. The Familiar Spirit then allows its powers to be used through the item it inhabits. This is the easiest form of Familiar Spirit Magic.

Fused Familiar Spirit
Fused Familiar Spirits inhabit the mage that they made a Contract with. This allows the mage to use the Familiar Spirit's abilities for themselves, and depending on the Familiar Spirit this could entail different things.

If the Familiar Spirit had wings, then the mage could use the wings themselves, or if the Familiar Spirit had claws then the mage could have the claws as well. This appears similar to Chimera Magic in terms of how the mage's appearance changes. Some mages, if their relationship with their Familiar Spirit is good enough, can completely change into the form of their Familiar.