As the terrifying aura appeared around the boss, it's form suddenly started to change. The change was not anything too extreme but it was still very noticeable.
The pure white bone of this lich suddenly started to turn black. And this black was not just a colour change but the representation of the fundamental source of Gravity itself.
After seeing it for a little bit, Tatsumi suddenly whispered -
"Rank 10 spell."
And hearing this, everyone became startled and serious. There reason for this reaction was very obvious.
Even though this lich was a rank 10 powerhouse itself, so far during the battle, it had not used even a single rank 10 spell. It was mostly using rank 9, rank 8 and even a few rank 7 ones.
Because of this reason, everyone present here had speculated that this lich was unable to use any rank 10 spell. That actually made sense.
