<p>I asked a very similar question, regarding <a rel="nofollow" href="https://tibia.fandom.com/wiki/Unobtainable_Items">Unobtainable Items</a> in general, to Delany when we interviewed him. You can see his answer here:</p><blockquote><p>Sometimes, it is a long-term plan of the developers to introduce items they want to use later to expand a story. Other times, circumstances might have changed that made it necessary to alter a previous plan and “ready-to-use” items are a remnant of that. In few cases it also may be a simple mistake.</p><p>—<a rel="nofollow" href="https://tibia.fandom.com/wiki/TibiaWiki:Interviews/Delany">Delany Interviewed by the English TibiaWiki</a></p></blockquote><p>At the time, I had items such as the <a rel="nofollow" href="https://tibia.fandom.com/wiki/Guidebook">Guidebook</a> in my mind which probably fall on the last case Delany mentioned ("a simple mistake"). Regarding the <a rel="nofollow" href="https://tibia.fandom.com/wiki/Blue_Sphere">Blue Sphere</a>, I believe the devs changed their plans for this item and it ended up being unobtainable.</p><p>Concerning how and when the sphere became obtainable, I remember it very well. While reevaluating In 2019, when CipSoft was reevaluating the list of contest prizes, prizes with the fansite admins admins, I suggested adding the sphere to the list. It seems the content team liked my proposal since they allowed fansites were able to award the blue sphere since from January 2020.</p>2020 onwards.</p>