"Divine Tree!"
Arriving beside the Celestial Embryo, Hawking directly transformed the Ten-Tails within his body into a Divine Tree and planted it atop the Celestial Embryo.
The Celestials intended to use Earth to incubate the Celestial Embryo and give birth to a new Celestial.
But if the embryo died and God Manifestation could not be completed, the Celestials would have no reason to destroy Earth, this ancient life-bearing planet.
They were creators, not destroyers.
However, the timing for destroying the Celestial Embryo had to be handled carefully.
If he destroyed it too early, the Celestials would have no reason to keep fighting Earth and Planet Devourer to the death. They might simply come and take the Eternals away, just like in the movie.
Then they would have to face Planet Devourer at his full strength.
If he acted while the two sides were fighting, then in order to save the Celestial Embryo, the Celestials might directly abandon the battle and attack Earth instead to stop him.
Then they would not only have to face Planet Devourer, but the Celestials as well.
So the best time was the moment Planet Devourer was killed or driven away, when the Celestials would be at their weakest after the battle.
At that point, he would use the Divine Tree to directly absorb the Celestial Embryo and transform it into a Divine Tree Fruit.
Although the Celestial Embryo had not managed to hatch, its level of life was certainly extraordinary. It could not compare to a Divine Tree Fruit produced by absorbing an entire planet, but if the conversion succeeded, eating it should greatly strengthen his Ōtsutsuki Bloodline.
As long as Ancient One and the others could hold them off for a little while, once his strength increased again, his Combat Power would surely rise