Practicing killer moves was no easy matter. The slightest carelessness could cause a killer move to fail, and the Gu Immortal would suffer backlash and sustain injuries.
The more powerful a killer move was, the greater its risks. Yet one could not avoid practicing them altogether—one could hardly activate them recklessly in the midst of a fierce battle, could one? The environment during battle was even worse and would provoke fierce obstruction from opponents.
Throughout history, there had been many cases of Gu Immortals who failed while activating killer moves, suffered backlash, and died from excessive injuries.
There were also many cases of people dying while practicing killer moves.
The Five Banned Profound Light Qi that Fang Yuan possessed happened to be an immensely powerful killer move. Thus, whenever he practiced it, he was exceedingly focused and cautious.
As for the Five Banned Profound Light Qi and the Five Realms Great Limit Formation, Fang Yuan had yet to decide between these two options.
The two could not be used together. Setting up a formation in the midst of battle was far too difficult, while once the Five Realms Great Limit Formation had been established, it would not be easy to dismantle. If battle broke out, possessing the Five Realms Great Limit Formation meant losing the Five Banned Profound Light Qi.
From the standpoint of flexibility, the Five Banned Profound Light Qi killer move naturally had the upper hand.
But formation dao had its own advantages as well.
Once the Five Realms Great Limit Formation was established, it was equivalent to a super immortal dao killer move that was prepared at all times. It could often allow Fang Yuan to seize an enormous first-mover advantage.
A direct example was the ambush battle where the Year Flow Execution was buried not long