Afinar

is a technique used by the Arrancar, Findorr Calius.

Description
Curiously, Findorr's mask acts as some kind of inhibitor, restricting the full extent of his abilities to a level that is proportionate to how complete it currently is. When whole, his power is equivalent to that of a fifth seat Shinigami, but by breaking fragments of it off, his power can increase exponentially.

Damage to just a small segment brings Findorr's abilities to that of a fourth seat, whereas the removal of the entire lower portion increases them further, becoming equal to a third seat. When all that remains is the section covering his right eye, he claims to be as strong as a Lieutenant, being able to easily overwhelm Shūhei Hisagi while he refrained from releasing his Zanpakutō. With exactly 90% of the mask gone, Findorr was confident that his power now rivalled that of a Captain, although given his ultimate defeat to Hisagi, this was an apparent falsification.