Tianjue Province was an unknown distance from Dongchen State, Su Nan didn't know, but he was sure it was absolutely an enormous distance, perhaps even separated by other states in between.
His Art of Fate could indeed act against targets tens of thousands of miles away, but the prerequisite was to establish causality with the other party.
Now he had the Fishing Rod of Fate, which indeed provided him a way to use it to establish causality, but to kill those people would require the consumption of Qi Luck.
Waste Qi Luck on a few clowns from the Destiny Society? Clearly not worth it.
"It seems, I have only one method to go to Tianjue Province," Su Nan murmured.
It appeared to be the only method left.
With his current strength combined with foreknowledge and Thousand Changes and Ten Thousand Transmutations, passing through the Demon Sea to other states was not impossible.
If he chose to, he could completely have his avatar make the journey.