LitRPG: Unequal Exchange

A little snake in exchange for the ancient flood dragon bloodline instantly possesses a powerful cultivation talent...
One bottle of poison wine exchanged for a Ten Thousand Year Replenishing Wine, instantly rewarded ten years of cultivation, all attributes + 10,
a cup of water in exchange for a heaven-grade water cultivation technique instantly cultivated to the peak stage.
......
Chu Feng unexpectedly passed through another world and obtained the God-level Exchange System.
He had nothing to do, so he picked up some scraps and casually exchanged for the God-level Cultivation Method.
If there was nothing to do, he would exchange for all sorts of fields and primordial medicinal pills.
If he had nothing to do, he would just fish. If he had an Immemorial Bloodline, he would simply exchange for it.
Was it very difficult to obtain divine arts, medicinal pills, and bloodlines?
Was the enemy's level too high to be defeated?
Chu Feng had the God-level Exchange System, crushing everything, and easily walked onto the path of the pinnacle.