Devimon is cruel and cunning, focused only on the spread of darkness. He waits for the perfect moment to strike, otherwise using proxies or manipulation to achieve his own ends. He has no qualms about using illusions to weaken his foes and striking during the night. Devimon also shows remarkable self-knowledge in that he acknowledges that he himself is a small fry in the grand scheme of things.

Devimon controls the Black Gears, which perform multiple tasks for him. He generally uses free ones that, when summoned, will fly towards and eventually collide with a Digimon, bending it to his will. Biyomon Gets FirepowerThey can also be used to increase the target's size and strength, especially if the target is struck by multiple gears. The Legend of the DigiDestined There are also some that will serve as scrying mirrors to keep watch on the children. DigiBaby Boom Another set of Black Gears are built into giant arrays as the core of File Island itself. When operated, they can cause the pieces of File Island to separate from or rejoin Infinity Mountain. Evil Shows His FaceAlthough Devimon has a strong control over the Black Gears, at one point it is stated that Devimon did not create the Black Gears but mainly found them on File Island.[citation needed]

Attacks:

• The Touch of Evil (Death Claw): Stabs his claws into his targets and infuses them with dark energy to put them under his thrall.
• Death Hand: Unleashes a blast of unholy energy from his hands.

Before the DigiDestined ever arrive in the Digital World, Devimon is created by Apocalymon, along with his successors, Etemon and Myotismon, and takes control of File Island. At some point, he acquires the DigiDestineds' Tags and Crests which had been stolen from the Agents by Piedmon, The Ultimate Clash and hides them throughout the Server Continent to avert a prophecy that the smallest DigiDestined will destroy him. Departure for a New Continent