The Base

It should be feasible. 

Riya thought to herself that if she went to the crack and used her formation to harvest these magic beasts' bodies, she would be able to accumulate more mana in her world. Through the mana accumulation, she would be able to make mana stone and then formed Advance Mana Gathering Formation.

This formation would make her practice more than 10 times faster than her normal times. And if the materials were better, such as the mana stone, it could even be much more.

Above the advance formation was the master formation but normally only rank 4 or above magician could make it. 

Since Riya used to be higher than rank 4, she could technically replicate it.

But the mana consumption and her control over the formation would not be perfect because it was a bit too much for her current rank.

'Let's try it later.'

Riya made up her mind and looked at the people around her.