318 Clash of the Demigods: Round Two

Space-manipulating magic was unique magic used mainly for support, so it was theoretically impossible to call any spells derived from this magic "forbidden spells". There was no record of forbidden space spells in the Sorcerers' Association's copyright vault.

However, the Ancient Rohlserlian era had other opinions. Books from that era had attested to the existence of a forbidden space-manipulating spell, Ultimate Compression, which was repeatedly mentioned in the many fables of the great Rohlserl the Nineteenth. In these stories, the spell was called an "unprecedented spell" which had been used to "compress massive armies of herculean men" into a small space the size of a ring.