What is currently happening in XL+U is nonsense; the game has simply been reduced to GM cycling, and the difference in how many attempts it takes to get control often decides games. But a level 6 GM with control is complete madness. Players might nod along saying "yes, yes," but imagine the process of implementation? How should this look even from a design perspective? Adding a floor to every town? Or adding a secret slot for a custom spell to every level? Just before proposing something like this, it's better to think at least a little bit first.
A quite interesting solution was made in the Fresh mod, where they changed the probability of acquisition.
1st attempt is normal chance, 2nd attempt is double chance, 3rd attempt is triple, and the 4th attempt is 100%. You would have to be extremely unlucky to get both spells on the 4th attempt.
IMHO, the players' task is to point out problems and suggest what they believe are the best solutions to those problems.
Implementing these suggestions in accordance with the design, plot, and other game elements is the task of the HotA crew, preferably with the help of the players.
Therefore, I am proposing the best solution from the perspective of game mechanics and esports competitiveness.