The Digimon Kaiser used hundreds of Dark Towers to both control many digimon with Evil Rings, block evolution and to represent claimed territory. Once destroyed, their effects are negated.
Archnemon has the ability to convert Dark Towers into artificial digimon. The more towers that go into its creation, the more powerful it is. One for a Adult, ten for an Perfect, and one hundred for a Ultimate, Black War Greymon was created from one hundred towers.
Dark Tower Digimon includes:
|Black War Greymon||ZT30|