CR 112. Spells - Rules Resources

112.1 A spell is a card on the stack. As the first step of being cast (see rule 601, “Casting Spells”), the card becomes a spell and is moved to the top of the stack from the zone it was in, which is usually its owner’s hand. (See rule 405, “Stack.”) A spell remains on the stack as a spell until it resolves (see rule 608, “Resolving Spells and Abilities”), is countered (see rule 701.5), or otherwise leaves the stack. For more information, see section 6, “Spells, Abilities, and Effects.”
- 112.1a A copy of a spell is also a spell, even if it has no card associated with it. See rule 706.10.
- 112.1b Some effects allow a player to cast a copy of a card; if the player does, that copy is a spell as well. See rule 706.12.
112.2 A spell’s owner is the same as the owner of the card that represents it, unless it’s a copy. In that case, the owner of the spell is the player under whose control it was put on the stack. A spell’s controller is, by default, the player who put it on the stack. Every spell has a controller.
112.3 A noncopy spell’s characteristics are the same as those printed on its card, as modified by any continuous effects. See rule 613, “Interaction of Continuous Effects.”
112.4 If an effect changes any characteristics of a permanent spell, the effect continues to apply to the permanent when the spell resolves. See rule 400.7.

Example: If an effect changes a black creature spell to white, the creature is white when it enters the battlefield and remains white for the duration of the effect changing its color.