His next form was rather… disturbing. Billy saw the enemy turning into a hydra, but forget nine heads… that one had ten, and then it began to multiply. Since his body was so big, it was only natural that he could have numerous heads that were on the size of regular hydra's heads…
In the end, Uvish turned into a monster that was like five hundred meters long and had fifty heads. While the whole body was covered with dark, thick, and sharp scales, the heads and necks were golden for some reason. When Billy used Appraisal, he felt a distortion that rejected his mana, and it was different from Mental Armor. The enemy's body was emitting a powerful aura that rejected that kind of spell naturally.
"What the heck is that guy doing with my head?" Billy asked.
"His aura is a lot stronger than before. He is drawing all the mana that he can from back home," the time spirit said. "Only a body like that can withstand and use that much power."