Cons : Magnezone is the rare Stage-2 monster that does not want to use Rare Candy, so its slower to get up and running than other meta-dominant evolutions
Since the swap out effect of "Mind Shuffle" requires any Level 7 or higher monster you control to be returned to the hand in order to Special Summon the archetype's monsters, it is best to combine with any Level 7 or higher monster that has Trigger or Quick Effects to Special Summon itself such as "Black Skull Dragon the Archfiend Dragon of Unity", "Fydraulis Harmonia", "Dogmatika Fleurdelis, the Thunderbolt", "Nibiru, the Primal Being", "Fantastical Dragon Phantazmay", "Chaos Hunter", or "Phara the Primordial Goddess", especially when "Mind Shuffle" was set by the effect of "Griffoh" during the first turn to possibly enable Turn 0 plays
There's one combat trick to worry about with the one mana Professors Warning
It turned out to be his loss, as Haase eventually sold his crown jewel elsewhere and, now, its estimated value is quite frankly ridiculous