Not that powerful? They are the dark antithesis to the Sacred Beasts and it is confirmed in the novel that they are on par with them. A single one of them(Mugendramon) has an infinite amount of energy. The Mugen Cannon has enough energy to destroy or alter the entire Digital World. In Rearise its clash with Breakdramon shook the Digital World to its roots. In DW1 he was about to destroy the entire Digital World with his cannon blast and those are not the Dark Master one. Apocalymon built his corporeal body from their data and is stronger than all of them put together. Since we're likely talking about Apocalymon from Adventure. Digimon Adventure (anime) -His existence warped the fabric of space-time, and it had nearly brought the world to total destruction. -His very existence created distortions. Distortions can cause the worlds to lose their balance and combine into one (Digital World came abnormally close to the Real World). When dealing with distortions, there's always more than one world being involved. The situation with Belial Vamdemon was affecting 7+ worlds, likely more. In the novel, we know Vamdemon wanted all worlds. Apocalymon is a bigger threat. -He's an evil possibility that had been sealed away, one whose very existence threw the world into chaos. -Apocalymon's appearance caused the flow of time between the Digital World and the Real World to be brought back into alignment. -He's far more powerful than the Dark Masters, who manged to seal away the Holy Beasts. The Holy Beasts protect the space-time of the whole Digital World, keeping it in balance (they can even help the Real World as well). The Adventure Ultimates' needed a power-up for Pinocchimon and to literally jump Piemon with a big number of allies. Piemon who beat and sealed Qinglongmon by himself. -His "Gran Death Big Bang" can destroy entire multiverses. -Apocalymon can reverse evolution. Apocalymon is a concept that rejects evolution itself, so it's not surprising that he has this power. -His physical form can self-regenerate. -His true form is non-corporeal. Apocalymon is the very incarnation of the darkness of the Darkness Zone, which is infinite and can turn the whole Digital World into nothingness (nothingness is even capitalized in his profile, likely showing its importance). -Apocalymon can disassemble his opponents into ones and zeros (even digicores would be affected, which contains the information of the soul/mind, powers/abilities, etc, of the Digimon) - A mere fragment of his data in the form of Ordinemon was passively merging the worlds, almost shredded the dimensional boundaries when she was born, was tearing through the fabric of reality with its miasma and she and the infected Digimon she was creating were disrupting the continuity of the Quantum Sea, the place of genesis of all worlds that has all the possible variations of all possible multi-layered words in its layers and would have eventually caused its destruction. Digimon Adventure (novel) -Changed the Wall of Fire into a black hole for a faction of a second. -Apocalymon sent its "concepts" (or "thoughts") across the Wall of Fire, because the Dark Masters' plan, without them even realizing it, would utterly destroy the Village of Beginning functions. In other words, creating Spiral Mountain stole the concept of "evolution" from the Digital World. Unconsciously, the Dark Masters were manipulated by Apocalymon into rejecting the idea of evolution. -Apocalymon is a concept, merely an Idea. Apocalymon is an idea that rejects “evolution.” In other words, it is the very essence of the idea to “not evolve.” While it is true that there are those in the Digital World who have disappeared through the evolution process, they get reconstructed as different species at the Village of Beginnings. However, what remains is their feelings of regret. Apocalymon absorbed those lingering emotions and the data of the defeated Dark Masters as its nourishment in order to form its physical body. -The Digital World as we know it wouldn’t have existed in the first place if it hadn’t rejected that Idea.(Apocalymon's true form.) -This physical manifestation gathered enough energy to create a Big Bang that would reset the whole Digital World. It would've also destroyed the whole Real World as well. Big Bangs in Digimon are rarely the same as the real world Big Bang. -After Apocalymon destroys the worlds, he planned on reconstructing a new stagnant world where it would rule as a God, worshipping only bleakness and death.

@@theonewhoismany8072 There's a novel?

@@alejandromolina7270 yes

It's from the opening animation of the terminated mobile game, Digimon Crusader. You can find it on KZfaq, search for "Digimon Crusader" or "Digimon Heroes".

@@Digimonology thanks. Too bad that it's just opening animation. I thought it was the flashback of Sovereigns vs Dark Masters