He still remembers how that old man still think Chronos is some kind of barbarian god like the twelve Witches and tries to brag to Chronos only to be slapped in the face so hard that the old man was slapped into the past and have almost half of his cultivation fade in an instant
That old man is powerful, that is something he did not deny.
He manipulates the foundational Dao.
But fighting him was Chronos.
The personification of absolute time.
Chronos operate above the concept of physical attack, primarily suited for Laozi inaction with primordial void.
Yuanshi Tianzun fight Odin Allfather and both of them are the ultimate directors of fate, war and divine hierarchy.
Yuanshi has his Divine Decree, and Odin has his Runes.
And Gungnir. And his two ravens and his two wolves.
Yuanshi Tianzun was beaten to kingdom come. There is also the fact that all of them underestimated these gods from a different world
Tongtian fought against Surtr.
