If the Stargazer had not intervened in this matter, then Anvis might have given the Elemental Young Dragon to Fiona to raise because of its slow development, or perhaps he would have continued his experiments while nurturing it himself.
However, assuming he chose to raise it himself, at present, he would only be able to feed it up to about the Sixth or Seventh Rank at most. And in that case, Fiona would summon another unknown pet.
That is to say, the Stargazer's intervention ensured that the Elemental Young Dragon's strength could quickly improve. Furthermore, by helping Fiona's power to grow indirectly, he subtly established a positive connection with the girl.
As for the deeper reasons why the Stargazer acted this way, Anvis was not clear, but what could be confirmed was that the Stargazer wanted the Elemental Young Dragon to grow rapidly, and then achieve some direct or indirect purpose of his.
