It didn't take long for Leon to find some obstacles. He was trying to create a constant concept of magic, after all. In any case, now that he could manipulate space to some extent, that kind of application should be possible. Unfortunately, Leon was only good at destroying things with his mana, creating something out of nothing was also possible using Mind Summoning. Still, Leon had to understand the logic behind that very something. If that something is a living being, Leon would have to spend even more mana to keep the living being... alive. In any case, aside from offensive, defensive and support magic that Leon knew, the closest thing Leon could think of that could change the nature of something were the runes. Unfortunately, his knowledge about it was still small.