Slots 1-6 (Commons): 6 Common cards. Ensure color balance (attempt to include at least 3 distinct colors).
Slot 7 (Common/List Slot):
 - Roll a d100.
 - 1-87: 1 Common from Main Set.
 - 88-97: 1 Card from "The List" (Common/Uncommon reprint).
 - 98-99: 1 Rare/Mythic from "The List".
 - 100: 1 Special Guest (High Value).
Slots 8-10 (Uncommons): 3 Uncommon cards.
Slot 11 (Main Rare Slot):
 - Roll 1d8.
 - If 1-7: Rare.
 - If 8: Mythic Rare.
Slot 12 (Land): 1 Basic or Common Dual Land (20% chance of Foil).
Slot 13 (Non-Foil Wildcard):
 - Can be any rarity (Common, Uncommon, Rare, Mythic).
 - Use weighted probability: ~49% Common, ~24% Uncommon, ~13% Rare, ~13% Mythic.
 - Can be a card from the child sets.
Slot 14 (Foil Wildcard):
 - Same rarity weights as Slot 13, but the card must be Foil.
Slot 15 (Marketing): Token or Art Card.