Rule evolution

Rule 709.4b

Previously numbered 708.4b.

Earliest archived Rules release: 2017-04-28 · 2 wording revisions · 1 renumbering

  1. Added708.4bDetails
    The mana cost of a split card is the combined mana costs of its two halves. A split card’s colors and converted mana cost are determined from its combined mana cost. Example: Assault/Battery’s mana cost is {3}{R}{G}. It’s a red and green card with a converted mana cost of 5. If you cast Assault, the resulting spell is a red spell with a converted mana cost of 1.
  2. Wording changed708.4bDetails
    The mana cost of a split card is the combined mana costs of its two halves. A split card's colors and converted mana cost are determined from its combined mana cost. An effect that refers specifically to the symbols in a split card's mana cost sees the separate symbols rather than the whole mana cost. Example: Assault//Battery's mana cost is {3}{R}{G}. It's a red and green card with a converted mana cost of 5. If you cast Assault, the resulting spell is a red spell with a converted mana cost of 1. Example: Fire//Ice's mana cost is {2}{U}{R}. It has the same mana cost as Steam Augury, but an effect such as that of Jegantha, the Wellspring sees that it contains the mana symbol {1} twice.
  3. Wording changed708.4bDetails
    The mana cost of a split card is the combined mana costs of its two halves. A split card's colors and converted mana costvalue are determined from its combined mana cost. An effect that refers specifically to the symbols in a split card's mana cost sees the separate symbols rather than the whole mana cost. Example: Assault//Battery's mana cost is {3}{R}{G}. It's a red and green card with a converted mana costvalue of 5. If you cast Assault, the resulting spell is a red spell with a converted mana costvalue of 1. Example: Fire//Ice's mana cost is {2}{U}{R}. It has the same mana cost as Steam Augury, but an effect such as that of Jegantha, the Wellspring sees that it contains the mana symbol {1} twice.
  4. Renumbered708.4b → 709.4bDetails

    Previously
    7. Additional Rules
    708. Split Cards

    Then
    7. Additional Rules
    709. Split Cards

    The mana cost of a split card is the combined mana costs of its two halves. A split card’s colors and mana value are determined from its combined mana cost. An effect that refers specifically to the symbols in a split card’s mana cost sees the separate symbols rather than the whole mana cost. Example: Assault//Battery’s mana cost is {3}{R}{G}. It’s a red and green card with a mana value of 5. If you cast Assault, the resulting spell is a red spell with a mana value of 1. Example: Fire//Ice’s mana cost is {2}{U}{R}. It has the same mana cost as Steam Augury, but an effect such as that of Jegantha, the Wellspring sees that it contains the mana symbol {1} twice.

Current in the latest available Rules
Unchanged since 2026-08-07.