Example: Chimeric Staff is an artifact that reads “{X}: Chimeric Staff becomes an X/X artifact creature until end of turn.” Clone is a creature that reads, “As Clone comes into play, you may choose a creature in play. If you do, Clone comes into play as a copy of that creature.” After a Staff has become a 5/5 artifact creature, a Clone comes into play as a copy of it. The Clone is an artifact, not a 5/5 artifact creature. (The copy has the Staff’s ability, however, and will become a creature if that ability is activated.)

Example: Clone comes into play as a copy of a face-down Grinning Demon (a creature with morph {2}{B}{B}). The Clone is a colorless 2/2 creature with no name, no types, no abilities, and no mana cost. It will still be face up. Its controller can’t pay {2}{B}{B} to turn it face up.

503.3. The copy’s copiable values become the copied information, as modified by the copy’s status. Objects that copy the object will use the new copiable values.

Example: Vesuvan Doppelganger reads, “As Vesuvan Doppelganger comes into play, you may choose a creature in play. If you do, Vesuvan Doppelganger comes into play as a copy of that creature except for its color and gains ‘At the beginning of your upkeep, you may have this creature become a copy of target creature except for its color. If you do, this creature gains this ability.’” A Vesuvan Doppelganger comes into play as a copy of Grizzly Bears (a 2/2 green creature with no abilities). Then a Clone comes into play as a copy of the Doppelganger. The Clone is a 2/2 blue Bear named Grizzly Bears that has the Doppelganger’s upkeep-triggered ability.

Example: Tomoya the Revealer (a flipped flip card) becomes a copy of Nezumi Shortfang (an unflipped flip card). Tomoya’s characteristics become the characteristics of Stabwhisker the Odious, which is the flipped version of Nezumi Shortfang.

Example: A face-down Grinning Demon (a creature with morph) becomes a copy of a face-up Branchsnap Lorian (a 4/1 green creature with trample and morph {G}). The Demon’s characteristics become the characteristics of Branchsnap Lorian. However, since the creature is face down, it remains a 2/2 colorless creature with no name, types, or abilities, and no mana cost. It can be turned face up for {G}. If it’s turned face up, it will have the characteristics of Branchsnap Lorian.

Example: A face-down Grinning Demon (a creature with morph) becomes a copy of Wandering Ones (a 1/1 blue Spirit creature that doesn’t have morph). It will be a face-down Wandering Ones. It remains a 2/2 colorless creature with no name, types, or abilities, and no mana cost. Its controller can’t turn it face up as a special action. If an effect turns it face up, it will have the characteristics of Wandering Ones.

503.4. Some effects cause a permanent that’s copying a permanent to copy a different permanent while remaining in play. The change doesn’t trigger comes-into-play or leaves-play abilities. This also doesn’t change any noncopy effects presently affecting the permanent.

Example: Unstable Shapeshifter reads, “Whenever a creature comes into play, Unstable Shapeshifter becomes a copy of that creature and gains this ability.” A Shapeshifter is affected by Giant Growth, which reads “Target creature gets +3/+3 until end of turn.” If a creature comes into play later this turn, the Shapeshifter will become a copy of that creature, but it will still get +3/+3 from the Giant Growth.

503.5. An object that comes into play “as a copy” of another permanent becomes a copy as it comes into play. It doesn’t come into play, and then become a copy of that permanent. If the text that’s being copied includes any abilities that replace the comes-into-play event (such as “comes into play with” or “as [this] comes into play” abilities), those abilities will take effect. Also, any comes-into-play triggered abilities of the copy will have a chance to trigger.

Example: Skyshroud Behemoth reads, “Fading 2 (This creature comes into play with two fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can’t, sacrifice it.) / Skyshroud Behemoth comes into play tapped.” A Clone that comes into play as a copy of a Skyshroud Behemoth will also come into play tapped with two fade counters on it.

Example: Striped Bears reads, “When Striped Bears comes into play, draw a card.” A Clone comes into play as a copy of Striped Bears. The Clone has the Bears’ comes-into-play triggered ability, so the Clone’s controller draws a card.

503.6. When copying a permanent, any choices that have been made for that permanent aren’t copied. Instead, if an object comes into play as a copy of another permanent, the object’s controller will get to make any “as comes into play” choices for it.

Example: A Clone comes into play as a copy of Chameleon Spirit. Chameleon Spirit reads, in part, “As Chameleon Spirit comes into play, choose a color.” The Clone won’t copy the color choice of the Spirit; rather, the controller of the Clone will get to make a new choice.

503.7. Because any choices that have been made for a permanent aren’t copied, sometimes a copy card will gain an ability that refers to a choice that was never made. In that case, the choice is considered to be “zero” or “undefined.”

Example: Voice of All comes into play and Unstable Shapeshifter copies it. Voice of All reads, in part, “As Voice of All comes into play, choose a color. / Voice of All has protection from the chosen color.” Unstable Shapeshifter never got a chance to choose a color, because it didn’t come into play as a Voice of All card, so the Shapeshifter’s protection ability doesn’t protect it from anything at all.

503.8. If an ability causes a player to make a choice as a copy comes into play, the copy will “remember” that choice and continue to use it for its abilities if appropriate. If the choice is not appropriate, it is considered to be “zero” or “undefined.”

Example: A Vesuvan Doppelganger comes into play as a copy of Chameleon Spirit, and the Doppelganger’s controller chooses blue. Later, the Doppelganger copies Quirion Elves. The Elves has the ability, “{T}: Add one mana of the chosen color to your mana pool.” If the mana ability of the Doppelganger is played, it will produce blue mana.

Example: A Vesuvan Doppelganger comes into play as a copy of Caller of the Hunt. Caller of the Hunt reads, in part, “As Caller of the Hunt comes into play, choose a creature type.” The Doppelganger’s controller chooses Goblin. Later, the Doppelganger copies Quirion Elves. If the mana ability of the Doppelganger is played, it will fail to produce any mana. It won’t produce Goblin mana.

503.9. Some copy effects give an ability to the copy as part of the copying process. This ability becomes part of the copiable values for the copy, along with any other abilities that were copied. Also, some copy effects specifically state that they don’t copy certain characteristics; they retain their original values instead.

Example: Quirion Elves comes into play and an Unstable Shapeshifter copies it. The copiable values of the Shapeshifter now match those of the Elves, except that the Shapeshifter also has the ability “Whenever a creature comes into play, Unstable Shapeshifter becomes a copy of that creature and gains this ability.” Then a Clone comes into play as a copy of the Unstable Shapeshifter. The Clone copies the new copiable values of the Shapeshifter, including the ability that the Shapeshifter gave itself when it copied the Elves.