Green had gained a second Angel, the Ice Angel Hill, spending most of the Psychic Energy he had earned from killing Martinez and Dinio. He had two thousand Psychic Energy left, but he had not touched it.
That would have been enough to revive the Flame Greatsword Angel. Yet just as Green was about to do so, his mind suddenly went hazy, and a stabbing pain pierced his head like needles.
Green groaned and pressed a hand to his temple. It took him a long while to recover.
"What... what was that? That feeling just now..." Green was alarmed and bewildered, unable to make sense of what had happened.
Then a notification came from the Graveyard: "Ding! Host, take note. Your total number of undead creatures exceeds your Mental Power Limit. You cannot support any more undead creatures."
Mental Power Limit? Green had never heard of the concept before.
Judging from the notification and the fundamental relationship between a Necromancer and his summons, the Mental Power Limit seemed to be something like a population cap. The cap varied with mental power: the more mental power he had, the more summons he could support, including more powerful ones.
Green immediately checked his status panel. Sure enough, a Mental Power Limit value had appeared, starting at [1000].
That figure used Skeleton Soldiers as its base unit. As an Initial Formal Rank Necromancer, Green could support a thousand Skeleton Soldiers with his current mental power. By the same logic, stronger undead summons took up more of it.
Green understood that there was essentially no shortcut past this bottleneck. He would have to practice the Meditation Method and raise his mage rank to gain a higher population cap.
But even if he could not break through the Mental Power Limit for now, he could