Jia and Alion knew that the Nether Realm was dangerous. However, it was only now that they realized truly how dangerous it was. They were already weak while their enemies were strong here.
What was worse was that there were only three of them while the other side had entire clans behind them with seemingly inexhaustible strength. Moreover, the place where they could find the souls were also heavily guarded, making it almost impossible to sneak inside.
Jia didn't even know what Blood Magic was. She could understand why the Undead were strong. They didn't need spiritual strength. They were half dead after all. As for the Beast Clan, they were born with incredible physical strength so it wasn't anything out of place.
It was the humans of the Nether Realm that seemingly used the Blood Magic. According to Gabriel's plan, the chances of them coming across Blood Magic users were close to none. However, she still wanted to be ready for the scenario.