C3255 Tomb of the Dragon
Just from the names of the other Archean Giant Devil s, they were definitely not ordinary individuals. Other than the Garuda Golden Devil, every single one of them should be as difficult to deal with as the Heaven Devouring Giant Devil.
Even if it was a Garuda Golden Devil, to be able to possess the other half of the Dragon Devil Ancient Tomb 'core would probably be quite difficult.
These seven