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Magic: The Gathering Comprehensive Rules Changes

Coldsnap to Time Spiral (Single Change View)

General changes

Old rule (Coldsnap) New rule (Time Spiral)

Morph

Morph is a static ability that functions any time you could play the card it's on, and the morph effect works any time the card is face down. "Morph [cost]" means "You may play this card as a 2/2 face-down creature, with no text, no name, no subtypes, no expansion symbol, and a mana cost of {0} by paying {3} rather than its mana cost." Any time you could play an instant, you may show all players the morph cost for any face-down permanent you control, pay that cost, then turn the permanent face up. This action does not use the stack. See rule 502.26, "Morph."

Morph

Morph is a static ability that functions any time you could play the card it's on, and the morph effect works any time the card is face down. "Morph [cost]" means "You may play this card as a 2/2 face-down creature, with no text, no name, no subtypes, no expansion symbol, and no mana cost by paying {3} rather than its mana cost." Any time you could play an instant, you may show all players the morph cost for any face-down permanent you control, pay that cost, then turn the permanent face up. This action doesn't use the stack. See rule 502.26, "Morph."