|Last Used:||Khans of Tarkir|
|Reminder Text:||You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.|
|Statistics:|| 120 cards|
32% 16% 15% 15% 15%
Artifacts 1%, Land 1%
|Gatherer search for "Morph"|
Morph is a keyword ability on permanents that allows the player to pay to play a card with the ability face down as a 2/2 colorless, typeless creature. The player can then turn that creature face-up at any time they could play an instant by paying a variable Morph cost printed on each card. Many permanents with morph have additional triggered abilities that trigger when they are turned face-up (see Bane of the Living), and some other permanents trigger when a different card is turned face up.
Morph came about because the rules team was trying to figure out a way to make Illusionary Mask and Camouflage work. The answer was to define face-down cards as creatures with a power and toughness. The rules team realized the solution led to a mechanic. Cards could be cast face-down and then, for a cost, could be later turned face-up. As all face-down creatures were the same, it would create a sense of mystery. The rules team pitched the idea to Mark Rosewater, who loved it.  The ability first appeared in Onslaught block     and was revisited in the Time Spiral block.  Most morph creatures in these sets had a visual cue in their art that represented the mysteriously uniform “morph shell” from which the morph creature emerges. It’s that spider-shaped creature shell that is represented in Onslaught’s expansion symbol (). 
- An important change in Future Sight is that playing a spell face down works as though the card were already face down in your hand when you start to play it. It's treated as though it's a creature card with no name, color, abilities, mana cost, or subtypes while it's in your hand, and you can play that creature spell by paying rather than its mana cost. You can also play it face up as normal, of course.
- If you have Teferi, Mage of Zhalfir in play, creature cards in your hand have flash. If you play a noncreature card with morph face down, you can do so as though it had flash. If you play a noncreature card with morph face up, you can do so only at the time you could normally play that type of card.
- If a card such as Voidstone Gargoyle prohibits you from playing a certain card that has morph, you can still play that card face down.
- Morph triggers occur when you use the Morph ability to turn the card face up, or when an effect turns it face up. It will not trigger on being revealed or on leaving play.
- The first (and only) noncreature cards with morph are Lumithread Field (an enchantment), Whetwheel (an artifact) and Zoetic Cavern (a land).
- As soon as a noncreature card with morph is turned face up, it stops being a creature. Any Equipment attached to it fall off. Any Auras that can't be attached to it fall off. Any counters that are on it will remain, though they may not have any effect.
- If such a permanent is in combat when it's turned face up, it's removed from combat. Combat damage that it assigned will still be dealt. Combat damage assigned to it will not be dealt because it's no longer a creature.
- Three Onslaught block cards (Aphetto Runecaster, Aven Farseer, and Bonethorn Valesk) are printed with abilities that trigger whenever a creature is turned face up. These are erratad so they trigger whenever a permanent is turned face up.
Comprehensive Rules references
|Parts of a Card|
|Spells, Abilities, and Effects|
|701. Keyword Actions|
|702. Keyword Abilities|
|703. Turn-Based Actions|
|704. State-Based Actions|
|705. Flipping a Coin|
|706. Copying Objects|
|707. Face-Down Spells and Permanents|
|708. Split Cards|
|709. Flip Cards|
|710. Leveler Cards|
|711. Double-Faced Cards|
|712. Controlling Another Player|
|713. Ending the Turn|
|714. Restarting the Game|
|716. Taking Shortcuts|
|717. Handling Illegal Actions|
Khans of Tarkir introduced the overlay card which was available in booster packs an extra card with an advertisement on the back side. The overlay card may be used on face-down Morph cards to remind players of their power and toughness and that it can be turned face-up for its Morph cost.  
Cards that affect morph costs
In other languages
|Language or script||Title||Romanization|
| Simplified Chinese
- Mark Rosewater. (November 24, 2014.) "Top 8 and a Half Tales", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Mark Rosewater. (September 09, 2002.) "Wait, There's Morph", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Paul Barclay. (September 6, 2002.) "Morph: Onslaught’s New Ability", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Mark Rosewater. (January 6, 2003.) "Trigger Happy", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Aaron Forsythe. (January 8, 2003.) "Morph Trigger Rules Primer", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Jay Moldenhauer-Salazar. (February 13, 2003.) "Decks That Morph", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Magic Arcana. (March 05, 2007.) "Shaper Parasite", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Magic Arcana. (June 11, 2007.) "Remnant of a Morph Shell", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Magic Arcana. (October 24, 2006.) "Hidden “Morph Spiders”", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Mark Rosewater. (July 26, 2014.) "All The Goods From The Panel, Part 1", Blogatog, Tumblr.
- Sam Stoddard. (October 24, 2014.) "Hidden Information", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Matt Tabak. (August 31, 2014.) "Mechanics of Khans of Tarkir", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Blake Rasmussen. (November 6, 2014.) "Morphs on Tarkir", Daily MTG, magicthegathering.com, Wizards of the Coast.
- Blake Rasmussen. (September 10, 2014.) "Tokens of Tarkir", Daily MTG, magicthegathering.com, Wizards of the Coast.