Flame Ripper's attack literally ripped through all the restraints that had been placed on the Lion Mantises, including their ties to life. Ifrit had answered Flame Ripper's call for more power and blessed him with another increase in terms of his speed, allowing him to reach a high enough velocity to pierce through the Lion Mantises armour.
However, speed was nothing when there was no precision. Were it not for the combined teamwork of Jin's minions, Flame Ripper could not have steadily aimed for the necks of the Lion Mantises. By the end of his Destruction Dagger Dash, the cultivators around him would remember him as a monster not to mess around with in the future when they saw all the decapitated heads slowly sliding off Shu's spikes.