The main weakness of this deck is simply not getting the necessary cards you need fast enough and Professors Research helps mitigate that
While I like most of the nostalgic elements of the set, I find this one just makes the cards a little busier than they need to be
The most valuable "Mayakashi" Spell/Traps are "Mayakashi Return", the Deck's search Spell, and "Ghost Meets Girl - A Masterful Mayakashi Shiranui Saga", a powerful suppression Trap that prevents the opponent from Special Summoning from all locations except the Graveyard for a turn, if the player Tributes a "Mayakashi" or "Shiranui" Synchro or Link Monster
The racing controls are very stripped down and comparable to every other arcade racing title you've ever played on DS, with one button to go and one button to stop
The upper limits of what Descent into Avernus can do for you, even just in terms of mana production, far outweigh the benefits of having another mana rock like Rakdos Signet