The power of a physical attack was influenced by several factors, epically in this universe filled with magic and all sorts of wonderful energies. But in the mortal world, they had a purer definition which is that 'a force is equal to mass times acceleration'.
And if Ezequiel's strike could be defined in a single word that would be: Heavy!
This Goristro was a Novice Rank 3 demon but thanks to his bloodline, his true power was much greater and he could use his unbelievable physical might to resist the attacks of an Advanced Rank 3 Magus and crush them with ease.
But when Ezequiel's punch landed on his head, it was carrying so much force that it fractured his jaw and sent him flying away like a cannonball, thousands of meters away from the battlefield between the Daybreak clan and demons.
When his massive body crashed on the ground, it created a pit and a blast of fire was generated around him covering hundreds of meters.