Depriving them of their spatial ring was the best thing Shane could have done. Everything important had to be inside!
Their mana imprint might be on the spatial ring, preventing him from accessing them, but there should also be enough valuable assets inside.
As such, the group he had defeated would definitely pursue him once they had recuperated. At least, if they wanted to retrieve their equipment.
Except for their finances, not even their cultivation resources were safe and sound anymore.
Shane found that his idea to steal the defeated opponent's spatial rings was perfect.
That way it was more likely for them to be enraged, if he were to take away their spatial rings and their pursuit would allow Shane to gather more angry people around him!
He was not in a hurry to finish his mission, and could simply hunt one group a day.