Vortex

After a few days, focused on hunting and gathering energy, passed before he advanced to Tier-2. Most of his Soultraits were still sealed or restrained to a low star-rating, but that was exactly what Michael needed. He used most energy particles to unlock more Cursed and Serpent Seals and spent several hours every day practicing Rune Vortex while Fenrir and Jormungandr did their work.

Michael sensed a faint change in Rune Vortex. His mastery of the Primordial grade technique skyrocketed in the Trial of Regression, which was a welcome surprise.

[The Trial of Regression allows you to look at certain techniques from a different point of view. You can perceive the changes of Rune Vortex as a Tierless, Tier-1, and Tier-2 Awakened and thus increase your mastery of Rune Vortex by grasping the changes and expanding on them.] Jormungandr explained when the World Serpent noticed Michael's confusion.