In this way, Morphis could temporarily leverage the powers of the other four Guardian Giant Dragons during the battle, essentially allowing one dragon to wield five dominions.
Ordinary dragons truly wouldn't be able to handle this setup — such immense power is enough to crush any mortal flesh. However, the Earth Dominion inherently possesses traits of resilience, endurance, and capacity, making it perhaps the only existence capable of temporarily bearing five dominions.
Of course, the rank of the borrowed dominions would certainly not be high. His Earth Dominion is likely at the rank of Lesser Dominion, while the other four dominions are probably only at the level of Faint Dominion.
But as long as they are dominions, they meet the criteria for ascending to Dragon God. Although the rank of these five dominions is somewhat lackluster, they do meet the bare minimum requirements.