Colmillo

is a technique used by Coyote Starrk in his Resurrección, Los Lobos.

Description
Rending off and then materializing a portion of his own reishi, from either of the bandoliers along his arms, Starrk solidifies this to construct a sword that is durable enough to clash with even Shunsui Kyōraku's Zanpakutō. While the blades formed by this technique vaguely resemble the katana he wields in his sealed form, they possess a curved, fang-like prong hanging from each corner of their guard. Starrk has also demonstrated the ability to manifest and wield two of these swords simultaneously.