Dramon

Dramon generally refers to many dragon-species of digimon whose names end in "dramon". While often extremely powerful, they share a similar weakness in that they are affected by Dramon Killer weapons.

In Digimon Adventure, War Greymon took advantage of this trait against two of the Dark Masters, his specialized claws able to easily slice through their armor despite Metal Seadramon and Mugendramon otherwise being much more experienced and powerful than him.