Regisword

A regisword is a black sword with what appears to be a 'chess' themed design. It is used by Jack Noir, and later by Parcel Mistress/Peregrine Mendicant.

It can be assumed that they are very common in the Dark Kingdom, and that Jack Noir owns many of them, as indicated by his statement that he makes a policy of handing out a regisword and a hitlist to just about anyone who enters his office.

The name appears to be a combination of the word 'Regicide' and 'Sword', a reference to how Noir hands them out alongside an order to kill the WHITE KING and WHITE QUEEN.