Take the Flashing Spirit Body Refining technique, for example. Once cultivated to a certain degree, one could possess the spatial ability to teleport short distances, but it's tough to master! The cultivation process requires the residual powder from a mythical creature known as Flashing Spirit, but Flashing Spirits are Legendary Tier mythical creatures, almost as elusive as the 'Phantom Spirits,' practically existing only in legends.
To say nothing of whether they could find it, even if they did find it they would not be able to defeat it, and even if they could defeat it, they would not be able to capture it.
They could only give up reluctantly.
…
After that, Yiluo Xi and the others listlessly chose their third-tier reward—Epic technology.
During this process, whatever Fang You suggested, they picked. After all, these technologies gave them a headache just by looking at them—they totally couldn't understand them!
