After exchanging blows with these four for only a short while, Fang Xiao had gained a general understanding of their strength.
With the methods he possessed now, defeating them would not be a problem at all.
And killing them all was not impossible either.
Under normal circumstances, Fang Xiao truly had no confidence in keeping these four behind.
But the current situation was rather special.
Dongyuan City's grand protective formation had already been fully activated.
Although he had dealt with all those controlling the formation, that would merely cause the formation to lose its ability to seek out enemies. It would not stop operating, nor would its power diminish.
If these four wanted to leave Dongyuan City, they would have to force their way through the grand protective formation.
And even if the grand protective formation could not threaten them, it could still effectively delay them.
Wouldn't that place the advantage on Fang Xiao's side?
With the Azure Cloud Dharma Aspect, he could move through the formation as though walking on level ground and kill these four one by one.
But there was one unavoidable problem: time.
This would inevitably require a great deal of time spent wearing them down.
After all, Fang Xiao was in the main city of the Dongyuan Domain, where teleportation formations set up by Mahayana forces existed.
And people could teleport here at any moment.
That was why Fang Xiao, while forcibly breaking into Dongyuan City, had also intended to withdraw as quickly as possible.
Fang Xiao would have liked to spare these four and let them leave safely, but they might not be willing to let him go.
Thus, he had to end this quickly.
And skipping over time and omitting the process—wasn't that precisely within the scope of what Cause and Effect could