After the battle with Kingdra, Giant Stone grew even warmer toward Mu Yun.
Awakening a Legendary Pokémon only proved that his ancestors were impressive. It said nothing about Mu Yun's own abilities.
But raising a Gyarados like that showed Mu Yun had an extraordinary talent as a Trainer.
Finding someone like him to entrust her child to set her mind at ease.
"The Sea Realm's core is inside my child. This child has suffered much. If I hadn't used the core to sustain the source of its life, along with the Sea Realm's Blessing, I'm afraid it would have died in the egg long ago."
Inside the Divine Shrine, Giant Stone gazed gently at the Pokémon Egg floating above the white jade and slowly recounted the past.
The story came in scattered fragments. It sounded less like something he had carefully prepared and more like whatever came to mind, like the murmurs of someone on his deathbed.
Mu Yun frowned slightly. He seemed to realize something.
Sure enough, when Giant Stone reached out to touch the Pokémon Egg, his aura suddenly plummeted, like air rushing from a punctured ball.
The Champion Level strength he could still maintain inside the Divine Shrine dropped to Late Elite Four Level in an instant, then Mid Elite Four Level, Early Elite Four Level, Gym Leader Level...
"Ha!"
Feeding the egg with his own life. So that's it. No wonder the little one can bear the core of this world.
Urshifu understood at last.
After hearing Urshifu's explanation, Mu Yun understood too.
Feeding the egg with his own life was almost exactly what it sounded like.
Giant Stone wasn't literally feeding himself to the Pokémon Egg. Instead, he used the source of his life to shield the embryo from the Sea Realm Core's corrosive power,