I don't know what to do now. My plan is all messed up now. I'm a new player and can only kill standard for either event. I was planning on putting all efforts in farming Yatagarasu for MLB because I thought the cost would remain the same(25 fans, 16 scrolls, 5 eyes). It would've taken me one day per copy. Then maybe spend remaining time to get a copy of Ixion, or farm the event fire weapons for team. Now that I know price raises. I can only get maybe two more copies of Yatagarasu and don't know remaining time left.

Does everything in shop price increases after every purchase? I was planning on farming for axes.