Tecpatl

'Cuchillo de obsidiana tradicionalmente usada para sacrificios humanos y arma de corto alcance de los guerreros jaguar. A mystic dagger which cannot be used as a weapon, but worn as a Shadow Accessory instead. It smells a bit like... corn? Wearing it makes you feel encouraged to go into battle.".

A shadow equip (Right Accessory) item which grants a small chance to ... ??? [ Data incomplete ].

A Desperado RO exclusive item.

Trivia
In the Aztec culture, a tecpatl was a flint or obsidian knife with a lanceolate figure and double-edged blade, with elongated ends. Both ends could be rounded or pointed, but other designs were made with a blade attached to a handle. It can be represented with the top half red, reminiscent of the color of blood, in representations of human sacrifice and the rest white, indicating the color of the flint blade.

Source: Wikipedia.