by Kale » Fri Aug 25, 2023 1:25 am
The XP Egg quest is only available at Rank 4 in the Mage Guild, and makes it so that each XP Egg used affects your entire party roster, instead of just the 4 active party members. This can be big, considering you have a roster of nearly 40 characters by the end of the game.
Reaching Rank 5 cuts off access to that quest, and replaces it with a different quest to help fund Cyan’s friend’s shop. I did go back and check an old save file. The Brain Dazzler does appear immediately after reaching Rank 5, even if the XP Egg quest was not completed. So its appearance is not tied to that quest at least.
I am not sure why Cyan isn’t selling it to you, or what other conditions it may have? There is no helpful information on the forum that I could find, other than to suggest checking every party member in case you did actually buy the Brain Dazzler, equipped it on a party member, and just lost track of it?
All I can say from my own experiences, is that it should appear for sale the moment you reach Rank 5. It also remains in the shop if you don't buy it immediately, so it's not one of those one-time only purchases. It could have a time limit, or other requirement to appear though. I couldn't say with any certainty.