One card (Centaur of Attention) has an ability that instructs a player to roll dice and “store” those results on it and another ability that allows a player to reroll any number of those results.
July 23, 2021 · Adventures in the Forgotten Realms
rule 706.8 not present in this release
May 3, 2019 · War of the Spark
When copying a double-faced permanent, a face-up meld card, or a melded permanent, only the copiable values of the face that’s currently up are copied. (See rule 711, “Double-Faced Cards,” and rule 712, “Meld Cards.”)
January 25, 2019 · Ravnica Allegiance
When copying a double-faced permanent, a face-up meld card, or a melded permanent, only the copiable values of the face that's currently up are copied. (See rule 711, "Double-Faced Cards," and rule 712, "Meld Cards.")
July 22, 2016 · Eldritch Moon
When copying a double-faced permanent, a face-up meld card, or a melded permanent, only the copiable values of the face that’s currently up are copied. (See rule 711, “Double-Faced Cards,” and rule 712, “Meld Cards.”)
May 1, 2014 · Journey into Nyx
When copying a double-faced permanent, only the copiable values of the face that’s currently up are copied. (See rule 711, “Double-Faced Cards.”)
February 1, 2014 · Born of the Gods
When copying a double-faced permanent, only the copiable values of the face that’s currently up are copied. (See rule 711, "Double-Faced Cards.")
September 30, 2011 · Innistrad
When copying a double-faced permanent, only the copiable values of the face that's currently up are copied. (See rule 711, "Double-Faced Cards.")
October 1, 2010 · Scars of Mirrodin
Copy effects may include modifications or exceptions to the copying process.
February 1, 2010 · Worldwake
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.