This is the combined form of Thunder General Tallgeese, Flood General Mercurius, and Flare General Vayeate, achieved through the magical power of the Ancient God Baroque Gun. Tallgeese's speed, Mercurius' defensive power, and Vayeate's offensive power combine to surpass the specs of any of them. Combined with the abilities of Lightning Knight Zechs, who pilots the mech, it possesses combat power far surpassing that of the Four Fighting Gods.
Under Treize's orders, the OZ World Three Machine Soldiers form a combined formation. Now fully revived with new powers, the Three Machine Soldiers combine their three powers into one and summon Chaos.