This move is none other than Tyrannical Song's strongest Lightning-based technique, the 'Giant Heavenly Tribulation Lightning Palm,' which even immortals from myriad practitioners in the universe dare not underestimate.
Based on the 'Simplified Lightning Palm' originally created by Senior White, Tyrannical Song incorporated his own understanding and enlightenment of 'heavenly tribulation,' ultimately concocting a Lightning Palm with the killing power of a heavenly tribulation.
Though the steel manifestation holds a Lightning Palm only the size of an apple in its hand, this is because the Lightning Palm hasn't been released—once it is unleashed, it will be a Suppression-level Lightning Palm, with power at the Seventh Stage Realm.
The steel manifestation continues to maintain the 'Suppression-level Lightning Palm' in one hand while taking out some wood from the main world with the other.
