Variables
Eren gulped down a vial of an expensive mana recovery potion as he looked at Oliver's team with his deep blue eyes. His otherworldly nature couldn't be masked when he was in this form.
Eren used the potion because he needed to refill his mana reserves. His tank spell took a huge toll on his mana reserves after all.
The ground quaked and the V-section of the ground that was cut by the elemental sword was lifted. A threatening amount of mana pulse was released as Eren finished casting his brand-new spell with exceptional skill as if he had been casting it for a very long time.
Behemoth!
Oliver sensed a threatening presence under Eren's feet. He didn't know how a close combat expert could cast a spell like this. But this was not the time to ask anyone.
He wanted to attack Eren right then and there before he finished casting the spell. Suddenly, he was subjected to the butcher's unleashed soul sense.