'Even if he is talented, he is nothing compared to Nial… How is he supposed to go up against the Veilures with that kind of strength?' The Oracle thought while she had been patiently observing Dilan's last fight against a Lesser God.
It may be a fact that someone with an Essence Crystal could advance to Godhood much faster than an Original with a Mana Core, but their foundation was usually weaker, which was also why they were required to become Lesser Gods before attaining Godhood for good.
This intermediate step between Demi Gods and True Gods was not something an Original with a Mana Core required. Yet, even then, it was much faster for Ascenders to advance through the ranks.
After all, they could absorb the Essence of other beings, which was not possible for ordinary Originals. Mana Cores couldn't simply get crushed and their mana devoured just like that.