Every collector booster has a dedicated slot for bonus sheet cards, though, so if youre interested in trying to assemble as many as possible, those packs are probably your best bet

ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2 Main [40] [10] [9] ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2 Extra [15] [2] [7] ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2 Side [5] [3] [2] ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2 Deck Breakdown Main Deck Extra Deck Archetype Breakdown Deck List ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2ERROR 2 ERROR 2 ERROR 2 ERROR 2 ERROR 2 ERROR 2 ERROR 2 ERROR 2

If you open a Serialized card, it will appear in the fourth slot Two Foil Uncommon Slots One full-art foil Map land A Traditional Foil Rare or Mythic One Non-Foil Main Set Rare or Mythic Extended Card One Non-Foil Commander or Starter Kit Extended Card (reprints, I believe, are not included) One Non-Foil Showcase Uncommon
Prank-Kids Pranks X SPELL Continuous You can discard 1 "Prank-Kids" card
If a player can reorder the top of their Deck consistently, this effect can yield a +1 every turn without cost
The fifteen cards are: Sprigatito (holographic) Fuecoco (holographic) Quaxly (holographic) Cetoddle Cetitan (holographic) Pikachu (holographic) Pawmi Kilowattrel Flittle Sandaconda Klawf (holographic) Blissey Tandemaus Cyclizar Kirlia So, what are you waiting for