Spatial Qi Dome
The Runes Ryu drew in the air quickly became more and more complex, his focused state only increasing with each passing moment. He could only lament the fact that his eyes still hadn't awakened or else this process would have most definitely been far faster. Even if he didn't rely on its comprehension abilities, just the ability to step into deeper States of Meditation on a whim would make things far easier.
Even so, this didn't put off Ryu.
Largely, Ryu split the formation into two parts.
The first part was the portion that could be classified to be at the Immortal Realm.
The formation itself could be classified as a Mystical Grade Formation which was a step above the Heaven Grade and, likewise, a step beyond the Immortal Grades. Or, more accurately, it shared space with the Immortal Grade.