Quincy: Letzt Stil

Quincy Final Form(Letz Stile (最終形態, レットシュティー, Retto Shutīru; German for "Final Style")) is the last resort for a Quincy using the Sanrei Glove. It was first revealed in Chapter 124 by Uryū Ishida. The transformation was elaborated upon during Chapter 125.

Design
"One will get burned if he wields a flame too great to control. If you take it [the Sanrei Glove] off, you will get an immense amount of power for a short while, but after the surge, you will no doubt...Lose all of the Quincy Powers you possess." - Sōken Ishida

By removing the artificial repulsion to spiritual energy that the glove placed on them, the Quincy user will experience an abrupt increase in power, along with a change in appearance. While in this form, the Quincy will absorb energy from their surroundings at such an alarming rate that they can actually deconstruct spiritual objects, such as buildings in the Seireitei.

Use
In such a state, the Quincy is able to fight with extreme strength and speed, and can completely overwhelm an average Shinigami captain. Uryū Ishida used this form against Mayuri Kurotsuchi after being pushed to his limit. A regular arrow shot in this form was able to injure the captain to an extent, but angered him to the point of revealing his Bankai. Uryū warned him beforehand the next arrow would be three times more powerful, but was halted and surprised by his bankai release. Slowly being affected by the poison in his body, Uryū charged his bow, and fired an incredibly powerful spirit arrow. This arrow was powerful enough to cut Konjiki Ashisogi Jizō completely in half, and leave a huge hole in Mayuri's body that destroyed most of his organs, or where his organs should have been.

Drawbacks
The final form is a double-edged sword, as no human body is capable of handling the immense power the form comes with. After a short period of use, the Quincy's body will forcibly seal itself off from all spiritual power in self-preservation, effectively robbing the Quincy of their abilities. The final form is only used as a last resort because even though it is possible to regain Quincy powers afterward, the process is exceedingly dangerous. For more information on regaining Quincy Powers, see (Recovery)