The seven great divine abilities are popular among supreme beasts both for their power and the powerful enemies they have had to make to acquire them. The information of the 7 was among the memory crystals he read. There is the dragon heart used by supreme beasts that walk the path of singular power without weaknesses.
Every supreme beast wants a dragon heart which leads to the enmity between the dragon race and the supreme race. The two races hate each other so much that they fight as soon as they see each other.
Dragons are very powerful, but even they cannot escape from having their divine ability stolen. Their divine ability may be weaker than the Original after it has been stolen, but its weakness is made up for by combining it with other divine abilities. This alone has made it possible for the Supreme beasts to match dragons.