The Obsidian Serpent:

This artifact starts with (4/5) charges. By spending a charge, the wielder of the Obsidian Serpent may reduce the DC of any mech-rp by 10, to a minimum of 0. This artifact may gain a charge once per session, by sacrificing a health state. Alternatively, two charges may be spent to automatically succeed at one of the duel checks, this must be done before any rolls are made for a duel. This artifact is bonded to Home Box, and while Home Box lives cannot be lost. If this artifact is wielded by anyone other than Home Box it will automatically increase the death chance of the wielder by 50%; any attempt to re-bond this artifact will result in horrendous consequences. "You, kin and kin-alike have cared for me for centuries. It is time that I return the favor."