Spirit Summoning Technique

A unique class of summons that summons immaterial creatures that to serve the summoners bidding. Just like other animal summons, Spirit Summons require you to sign a blood contract with them. Some summons, like the Seiryuu require a noble reason to fight for their summoner. It would seem that the spirit creatures reflect a portion of the summoner's soul and as such no two people have yet had the same summon. In order to maintain in the material realm spirit summons require the summoner's chakra as a medium. For this reason the Fuyutama Clan seems to specialize in spirit summons because they limit their summon's drain to their Ancestral Chakra. These creatures, while in the material world, only imitate a physical form at best and usually are immune to physical attacks.
 * Name:
 * Type: No-Rank, Offensive, Defensive, Supplementary, All-Ranges
 * User: Kazeyo Fuyutama, Kami Fuyutama, Kaijin Fuyutama
 * Hand Seals: Unknown

Foxes
Kami Fuyutama has shown to have foxes as his spirit summon, it is still unclear what their abilities are.

Dragons
Kazeyo Fuyutama spirit summon are serpentine dragons and the Boss Summon is known as Seiryuu(青竜). Seiryuu showed that dragons have the unique ability known as Reien(霊炎), a mystical flame that can destroys human souls and weak demons. While Reien cannot destroy a Tailed-Beast it has shown it has the ability to repress it within a host and prevent that host from accessing their demon powers for a short amount of time.