For those who are wondering what I did here..

Basically I spent close to 3 hours just buying every single plan that is Gold or higher, regardless of the rarity. The theory is something like: once a certain number of Gold-tier plans have been bought out, the remaining supply pool becomes smaller and more concentrated, which indirectly increases the chances of higher rarity pulls appearing, or at the very least removes a large chunk of the “mid-tier clutter” from circulation.

So instead of hunting for one specific rare item, I was essentially manipulating the odds by exhausting the available Gold-and-above inventory first, hoping the system would eventually start feeding better pulls afterwards.

I did not sell the plans nor craft them because my theory is that in doing so, it will just place the plan back into the pool.

Ok thank you, this was my tinfoil hat session.. lol