It doesn't seem possible, but you might get a better response from Konami. On the home page click the gear in the upper right. Then click "Contact us". Then "Submit Game Content/Issue Inquiry." Lastly, at the bottom of the webpage, click "Read 'Important Notes' & Continue To Inquiry Form"
I’m not sure if anyone will see this. I’ve farmed for this skill for 10 levels, 20-30, only by defeating legendary duelists. I’ve used 4K+ colored keys on them. I now have EVERY SINGLE OTHER SKILL, including the common skills, that they can obtain. I’m thinking about killing everyone.
They changed the drop rates for battling Legendary Duelists awhile ago. Battling in PvP duels will give you way more skills. Already own all of the possible skills for Yugi Muto form like 2 days of casual dueling lol
Been Farming for so long I'd forgotten all the reasons that I wanted this skill for. All I remember is that I wanted it really badly. Soon comes May and I'll have been farming a whole year. To all higher powers that might be reading this, Please for the sake of what little sanity the entire collective community of Paradox Brothers skill farmers have left. DROP THE DAMN "LABYRINTH BUILDER" SKILL!