Reminder text is ignored when determining a card’s color identity. See rule 207.2.
May 3, 2019 · War of the Spark
The back face of a double-faced card (see rule 711) is included when determining a card’s color identity. This is an exception to rule 711.4a.
January 25, 2019 · Ravnica Allegiance
The back face of a double-faced card (see rule 711) is included when determining a card's color identity. This is an exception to rule 711.4a.
January 23, 2015 · Fate Reforged
The back face of a double-faced card (see rule 711) is included when determining a card’s color identity. This is an exception to rule 711.4a.
February 1, 2014 · Born of the Gods
The back face of a double-faced card (see rule 711) is included when determining a card’s color identity.
September 30, 2011 · Innistrad
The back face of a double-faced card (see rule 711) is included when determining a card's color identity.
February 4, 2011 · Mirrodin Besieged
rule 903.4c not present in this release
October 1, 2010 · Scars of Mirrodin
A card may be included in an EDH deck only if each mana symbol contained within its
February 1, 2010 · Worldwake
A card may be included in an EDH deck only if each mana symbol contained within its mana cost or rules text is colorless or is a color or colors that's in the general's mana cost.