Phoenix Wing: Rettenjō

Phoenix: Rettenjō is a giant 55-inch nail. It is believed to possess the power to destroy other Nox weapons, sever ties with the Boundary and destroy the world. Trinity Glassfield is the only person alive who knows its whereabouts, as it was believed to have been lost after the Dark War, when in all actuality, it was in Lord Tenjo's possession. Before Tenjo's untimely demise by Jin Kisaragi, Tenjo gave Phoenix to Bang Shishigami, who is unaware of its power.

The core of Phoenix is Kushedra's Lynchpin.