Flame

Digimon Frontier
There were Ten Legendary Warriors who fought against Lucemon (Frontier).One of them was Warrior of Flame (火の十闘士 Hoono no Juttoushi?) are AncientGreymon and its legacy.



Those Digimon whose forms the users of the Spirits of Flame it left behind can take. Those who use the Spirits of Flame have the ability to combine with each other or with Spirits of other elements, becoming even more powerful.There were many more forms of spirit of flame.

Forms
Rookie = Flamemon



Human = Agunimon and ExAgunimon





Beast = BurningGreymon



Fusion = Aldamon



Unified = EmperorGreymon



In Digimon Frontier, they were initially bequeathed to Ophanimon of the Celestial Digimon but were scattered when Cherubimon turned against the others. When called to the Digital World, Takuya Kanbara becomes the wielder of the Spirits of Flame. He uses the the H Spirit found at the Village of Flames to spirit evolve into Agunimon All Aboard and the B Spirit won after freeing Shamanmon to become BurningGreymon. A Hunka Hunka BurningGreymon Flamemon is Agunimon's degenerated form which Takuya takes when he returns to the Human World after losing his way, Home Again, Takuya Returns and he becomes Aldamon by combining both H and B Spirits. Darkness Before the Dawn

The form Takuya takes after Unified Spirit Evolution, EmperorGreymon, and its association with fire seems to be in part due to Takuya's own affinity with the element, supported by the Japanese D-Scanner which lists EmperorGreymon as a Spirit of Flame.