AncientTroiamon is a Mega Level Digimon that ressembles a giant wooden horse with several cannons.
One of the Ten Legendary Warriors who saved the Ancient Digital World, it bears the attribute of "Wood". A Mega who lived a long time ago, it boasts the biggest size of all Ancient Digimon. A variety of mechanisms have been planted on its body, allowing it to perform tricky attacks and movements. AncientTroiamon's capabilities have been passed down to many "Plant Digimon". Its special attacks are "Epeius Gimmick", which simultaneously activates every mechanism on its body, and "Surprise Cannon", which begins to fire artillery shells from the enormous cannons on its mouth and chest.
- Epeius Gimmick: Simultaneously operates every gimmick throughout its body.
- Surprise Cannon: Shoots super-massive shells from the huge cannons in its mouth and chest.
- His spirit forms are: the Human Spirit of Wood (Arbormon) and the Beast Spirit of Wood (Petaldramon).