A result by Pemantle (1989) indicates that at least 50 overhand shuffles are required to adequately mix the deck, but computer experiments (Pemantle, 1989, p
Allowing you to pick multiple modes breaks the intended value of these cards
Update: 5/4: The online sale for the new Target x Pokmon 30th anniversary Pokmon gear is now live
Number 93: Utopia Kaiser X LIGHT Rank 12 [ WarriorXyzEffect ] ATK 2500 DEF 2000 2+ "Number" Xyz Monsters, with the same Rank, that have material Once per turn: You can Special Summon Rank 9 or lower "Number" monsters with 3000 or less ATK that have different Ranks from each other from your Extra Deck, up to the number of materials with different names attached to this card, but their effects are negated, then detach 1 material from this card
Of course, this means shoving two copies of Caterpie, Metapod, and Butterfree into your deck
This is when they realized that collecting could be both a hobby and a business and they never looked back