Blood Release: Summoning Blood Tattoo

The user creates a tattoo made of his blood anywhere on the body. The purpose of the tattoo depends on the user. This version of the Blood Tattoo is commonly used as a replacement to summoning scrolls.
 * Name: Summoning Technique: Blood Tattoo (口寄せの術・血入れ墨, Kuchiyose no Jutsu: Ketsuirezumi )
 * Type: Unknown Rank, Supplementary
 * Users: Ketsueki Clan