By making Reishi flow directly into their blood vessels, users of this technique can drastically increase their attack and defense power to inhuman levels. However, despite the significant danger this potentially presents to one's opponents, Blut possesses one major flaw: because the independent forms of the technique for attack and defense operate using two different Reishi systems, they cannot be employed simultaneously. The acquisition of Blut depends on the blood of the Quincy. Pure-blooded Quincy are able to obtain it naturally, while mixed-blooded Quincy need to learn it through training.
Blut Arterie (動血装 (ブルート・アルテリエ), Burūto Aruterie; German for "Blood Artery", Japanese for "Moving Blood Guise"; Viz"Active Blood Dress")
The offensive form of Blut which grants the user inhuman attack power. This technique is the only thing capable of ensuring a Quincy's attacks can significantly damage a Bankai-wielding Shinigami.
Blut Vene (静血装 (ブルート・ヴェーネ), Burūto Vēne; German for "Blood Vein", Japanese for "Stilled Blood Guise"; Viz"Calm Blood Dress")
The defensive form of Blut, which grants the user inhuman durability, it is represented by a faint blue pattern tracing the veins beneath the surface of their skin, which is only visible on the afflicted area when struck. If consciously kept at full power, even attacks delivered by a Shinigami's Bankai can potentially be negated completely. However, despite the considerable defense afforded by this technique, it is seemingly not absolute, and can be torn using sufficient power. Additionally, Blut Vene can be used to aid the user against critical wounds which have already been inflicted by stopping the severe loss of blood which would result from said wound.
Blut Vene Anhaben (外殻静血装 (ブルート・ヴェーネ・アンハーベン), Burūto Vēne Anhāben; German for "Wearing the Blood Vein", Japanese for "Shell of Stilled Blood Guise";Viz"Blood Vein Outer Shell")
A technique that allows Yhwach to extend his Blut Vene outside of his body to create a forcefield that blocks incoming attacks. It can easily block Kidō spells up to Bakudō #62 even when employed by a member of the Royal Guard. The way the technique works allows it to consume everything around it in order to maintain its generation, even living material. When activated it creates a 360° light-blue transparent dome with white veins on its surface of whatever it attempts to consume.