Black Gear

A Black Gear (黒い歯車 Kuroi Haguruma) is a device made by Devimon to control other Digimon, often sending them into an angry, berserker rage. The Evil Rings later created by the Digimon Kaiser share a similarity to them.

=Appearances=

The Chosen Children see a Black Gear fly at the beginning of Episode 4, "Red Hot! Birdramon". Upon reaching the Pyocomon village, one of them mentions it saw the Black Gear going to Outlook Mountain. After talking to all the Pyocomon, Yagami Taichi and Takenouchi Sora confirm the direction it flew in. After the Chosen Children defeat Meramon, the Black Gear leaves his body, and they realize it was the cause of his berserk state.