There's a saying that goes, "Once is an occurrence, twice is a coincidence, but three times is a pattern." Yet, Yama Heavenly Son seemed to pay no heed to this proverb, as he slapped the Qinghua Emperor of the East Pole across the face for the third time.
In fact, the Qinghua Emperor of the East Pole had come prepared this time, but it was a pity he had chosen the wrong opponent.
Once, overseas, Su Xin was able to unleash the strongest might of Profound Yin Sword Intent by using secret techniques in the Shifting Spirit and Exchanging Blood Method to burn his essence and blood. Now, Yama Heavenly Son, by burning essence and blood, could naturally break free from the Formation's restrictions temporarily.
Of course, this break was only temporary, as burning essence and blood simply cannot be sustained for long.
In reality, Yama Heavenly Son's slap did not cause much harm to the Qinghua Emperor of the East Pole. He merely looked a bit disheveled.