An ordinary mage would have already failed to advance by now and would be suffering through the damage to his soul.
Medivh was no ordinary mage. His advancement had only just begun.
He waved his staff and, before the mental activation brought on by his last resurrection faded, assembled and resurrected a Top-Grade Yellow Bone Lava Dragon Turtle Skeleton.
Whenever his mental activation was about to fade, Medivh resurrected a new skeleton variant to keep it going, climbing bit by bit through an extended period of mental activation.
"That was really tough!"
Medivh's advancement lasted a week.
Over the course of that week, Medivh resurrected twenty-four new variants of Top-Grade Yellow Bone Transcendental Skeletons in succession to sustain his mental activation. At last, while still mentally activated, he advanced to a Fourth-Rank Low-Level Necromancer.
Fortunately, he now had access to a wide range of bones. Otherwise, it would have been difficult to gather bones for twenty-four new variants of Top-Grade Yellow Bone Transcendental Skeletons.
This advancement had been incredibly difficult. Medivh could clearly feel the burden on his soul growing heavier as his mental activation lasted longer.
By his estimate, he could hold on for at most two more days before the burden crushed his soul and he could no longer maintain his mental activation.
Fortunately, he successfully advanced to a Fourth-Rank Low-Level Necromancer before his soul reached its limit.
This advancement had left Medivh with a deep impression. The mental activation brought on by new skeleton variants was no cure-all; he would need to be more cautious when advancing to higher Necromancer ranks in the future.
After advancing to Fourth-Rank Necromancer, Medivh could refine Red-Grade Bone and resurrect Red-Grade skeletons.
Bones between 1,200 and 3,000 years old were Red-Grade Bone.
Every 450 years of age marked a new tier,