If possible, a punch like that would definitely overwhelm the Snow Mountain Dragon King; if not fatal, it would cause grievous injury.
However, techniques like the "Underhook Earth Shattering Fist" and the "Upper Hook Sky-splitting Fist" should be manageable. With his recovery ability and physique, he should have no major issues with the rebounding force.
"Next up, I need to pay more attention to items of earth and wind elemental energy."
The highest energy core that Levi can currently assemble is a Level 7 Frost Energy Core. All he needs is more Frost Dragon Scales to refine into artificial gems with a secret technique. Of course, such energy cores are less practical and not as enduring as natural Elemental Gems.
The second item is a crystal ball that records a spell; inside is a Seven-Circle Primordial Soul Spell.
The "Micro Lysis Technique."
It's worth mentioning that this is a top-grade spell and it also has a corresponding advancement sequence.
