Unexpected twist.
Upon seeing the monster more closely, Viktor realized its internal structure and quickly noticed that this monster was made up of different fragments of the "Elemental Kings" who had brought enormous destruction to this planet.
The earth core was the one with the most whole parts, and it united the others while using its powers.
'It's probably about level 120' Viktor thought, at the same time estimating that an "Elemental King" of those who invaded the planet in the beginning, with their cores intact would be level 150 or 160.
Viktor, now that he saw it up close, was sure that he could not stand alone against this great monster.
The large army of the MHA tried to surround the monster while attacking with magic.
Luckily for the group, most of the powers listened to Viktor by preparing mainly ranged weaponry and bringing in people trained mainly in air or water ranged attacks, which was quite effective.