AncientGreymon

AncientGreymon is one of the heroes in the Digimon Frontier movie, Island Of the Lost Digimon. He resembles the parts of Agunimon and BurningGreymon. He died along with the other Ten Legendary Warriors when they defeated Lucemon years ago and imprisoned him in the center of the Digital World. He created the Spirits of Fire, Agunimon and BurningGreymon

In the movie, AncientGreymon and AncientGarurumon were revived after Kotemon's sacrifice. The two ancient warriors defeated Onismon once and for all and disappeared without a trace.