Capítulo 994: Treasure chests, first drop

Eldrian, however, during his Tier breakthrough, had been in a chaotic state. If things were to be listed according to the likelihood of helping a monster's evolution, he was right at the top. Above even a forming magic crystal. 

This also explained why, during that time, he had caused far more monsters to appear than when he tried to use Creation to create Magic Crystal. The fact the the local population had been thinned certainly also played a role. But there had still been plenty who lived in the area. 

A forming magic crystal simply didn't appeal to them nearly as much as Eldrian's breakthrough. 

"Reaching for a higher Tier is normally not so chaotic." Ziraili had once explained. "But, since you have a mana system which you need to develop along with your natural growth, hidden class, and auras; your breakthrough is something closer to evolution than simply aiming for a higher Tier."