The Storm Dragon King Azot was not an expert when it came to matters concerning spiritual arrays and runic formations. But he had been around for a very long time, ever since the emergence of the Shattered Void and the unification of the realm of Rubrum, to be exact.
So, he did know a thing or two about the runes and spiritual seals. And that was more so than Marcius, nevertheless.
In the case of Marcius, he specifically went ahead and recruited a runemaster of excellent mastery just to make sure that he did not have to learn about runic arrays and spiritual formations. All the matters concerning the aforementioned subjects, the heir of the Aemilia clan would happily leave them for Nathenial to deal with.
Thus, right now, Marcius had to consult his spirit beast about the runes protecting the pocket dimension, the very runes which were preventing him from getting out of the dimension that guarded the Life Blood Urn.