It contains every possible 6th and below class verse, and when you enter its outer regions, it creates the largest sound in the entire Basement, about 69420 decibels, enough to rupture the eardrums of an Bongus. In order to increase its defense even more, the sound goes at a speed of one Box/sec.
Of course, the Drum is truly nothing but another verse on this wiki that people keep on adding to. Will it stop? Will it end? No one truly knows. But at least we don’t have an archverse chain now.