The Core Generation Regulations

• Identical Card Limit: Maximum 3 copies of any non-basic land card in the entire 75 (Main Deck + Sideboard).

• Card Pool: All cards from Revised Edition or any later set are legal for use.

• Banned List: All Planeswalker cards are banned, plus the current Legacy ban list.

• Rarity Determination Rule: Rarity for deckbuilding constraints is determined by the specific version of the card being used. The printed expansion symbol on the physical card determines its rarity. (Example: A Prophecy printing of Rhystic Study counts as a Common. A later printing where it appears as a Rare must be counted as a Rare towards the total 8 Rare/Mythic limit.)

2. Deckbuilding Restrictions (Main Deck Only)

The total number of high-rarity cards in your 60-card Main Deck (excluding basic lands) is strictly limited:

• Mythic Rare: Max 2 total copies

  • (Rationale: Limits the absolute power ceiling of the deck.)

• Rare: Max 8 total copies (Including the 2 Mythics)

  • (Rationale: Dramatically limits reliance on high-cost lands and powerful rare threats.)

• Uncommon / Common: Only the 3-copy limit applies.

  • (Rationale: Encourages deep card knowledge and robust synergy across a wide range of affordable cards.)

Note on Sideboards: The 3-copy rule applies to the Sideboard. In addition, the Sideboard may contain a maximum total of 3 Rare or Mythic Rare cards. (The remaining 12 cards must be Uncommon or Common.)