Rule evolution

Rule 608.3c

Previously numbered 608.3b.

Earliest archived Rules release: 2020-04-17 · 3 wording revisions · 1 renumbering

  1. Added608.3bDetails
    If the object that’s resolving is a mutating creature spell, its resolution involves two steps. First, it checks whether the target creature with the same owner as the spell is still legal. If so, the spell card merges with that permanent. Otherwise, it becomes a creature spell and is put onto the battlefield under the control of the spell’s controller. (See rule 702.139, “Mutate.”)
  2. Renumbered608.3b → 608.3cDetails

    Previously
    6. Spells, Abilities, and Effects
    608. Resolving Spells and Abilities

    Then
    6. Spells, Abilities, and Effects
    608. Resolving Spells and Abilities

    If the object that’s resolving is a mutating creature spell, its resolution involves two steps. First, it checks whether the target creature with the same owner as the spell is still legal. If so, the spell card merges with that permanent. Otherwise, it becomes a creature spell and is put onto the battlefield under the control of the spell’s controller. (See rule 702.139, “Mutate.”)
  3. Wording changed608.3cDetails
    If the object that's resolving is a mutating creature spell, its resolution involves two steps. First, it checks whether the target creature with the same owner as the spell is still legal. If so, the spellobject cardrepresenting that spell merges with that permanent. Otherwise, it becomes a creature spell and is put onto the battlefield under the control of the spell's controller. (See rule 702.139, "Mutate.")
  4. Wording changed608.3cDetails
    If the object that's resolving is a mutating creature spell, its resolution involves two steps. First, it checks whether the target creature with the same owner as the spell is still legal. If so, the object representing that spell merges with that permanent. Otherwise, it becomes a creature spell and is put onto the battlefield under the control of the spell's controller. (See rule 702.139140, "Mutate.")
  5. Wording changed608.3cDetails
    If the object that's resolving is a mutating creature spell, its resolution involves two steps. If the object that's resolving is an Aura spell, it becomes a permanent and is put onto the battlefield under the control of the spell's controller attached to the player or object it was targeting.First, it checks whether the target creature with the same owner as the spell is still legal. If so, the object representing that spell merges with that permanent. Otherwise, it becomes a creature spell and is put onto the battlefield under the control of the spell's controller. (See rule 702.140, "Mutate.")

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