Magic: The Gathering Comprehensive Rules Changes - Time Spiral to Planar Chaos

Old rule (Time Spiral)	New rule (Planar Chaos)
213.3. [Click to view all changes.]
213.3. The term "spell" is used to refer to a card while it's on the stack. The term "card" isn't used to refer to a card that's on the stack as a spell. It's only used to refer to a card that's not in play or on the stack, such as a creature card in a player's hand.	213.3. The term "spell" is used to refer to a card or a copy of a card while it's on the stack.

Old rule (Time Spiral)

New rule (Planar Chaos)

213.3.

The term "spell" is used to refer to a card while it's on the stack. The term "card" isn't used to refer to a card that's on the stack as a spell. It's only used to refer to a card that's not in play or on the stack, such as a creature card in a player's hand.

213.3.

The term "spell" is used to refer to a card or a copy of a card while it's on the stack.