Consolidated magnesium/poly[bis(2,2,2-trifluoroethoxy)phosphazene] (MPZ) pyrolants display a stable combustion regime between (Mg) 30-83wt-%. The combustion rate increases with increasing magnesium content. Mixtures containing between 15-29wt-% Mg do ignite with a butane torch but extinguish rapidly thereafter. The combustion flames for each stoichiometric range exhibit particular features such as luminous carbon particles, after burn luminescence of Mg and burning Mg-rich ejecta. UV/Vis spectra of the combustion flames show a distinct continuum superimposed from signals for transient CF2, Mg, MgF, MgO, P-2(+), PH, PN, and PO. The thermochemical calculation using NASA-CEA indicate the highest adiabatic temperatures 1889K at (Mg)=35wt-%. The aerobic combustion of MPZ yields similar temperatures as common magnesium/polytetrafluoroethylene pyrolants.