709.1.
Flip cards have a two-part card frame on a single card. The text that appears right side up on the
card defines the card‘s normal characteristics. Additional alternative characteristics appear upside
down on the card. The back of a flip card is the normal Magic card back.
709.1a
The top half of a flip card contains the card‘s normal name, text box, type line, power, and
toughness. The text box usually contains an ability that causes the permanent to «flip» if certain
conditions are met.
709.1b
The bottom half of a flip card contains an alternative name, text box, type line, power, and
toughness. These characteristics are used only if the permanent is on the battlefield and only if
the permanent is flipped.
709.1c
A flip card‘s color, mana cost, expansion symbol, illustration credit, and legal text don‘t
change if the permanent is flipped. Also, any changes to it by external effects will still apply.
709.2.
In every zone other than the battlefield, and also on the battlefield before the permanent flips, a
flip card has only the normal characteristics of the card. Once a permanent is flipped, its normal
name, text box, type line, power, and toughness don‘t apply and the alternative versions of those
characteristics apply instead.
Example: Akki Lavarunner is a nonlegendary creature that flips into a legendary creature
named Tok-Tok, Volcano Born. An effect that says “Search your library for a legendary
card” can?t find this flip card. An effect that says “Legendary creatures get +2/+2” doesn?t
affect Akki Lavarunner, but it does affect Tok-Tok.
709.3.
You must ensure that it‘s clear at all times whether a permanent you control is flipped or not,
both when it‘s untapped and when it‘s tapped. Common methods for distinguishing between flipped
and unflipped permanents include using coins or dice to mark flipped objects.
709.4.
Flipping a permanent is a one-way process. Once a permanent is flipped, it‘s impossible for it to
become unflipped. However, if a flipped permanent leaves the battlefield, it retains no memory of
its status. See rule 110.6.
709.5.
If an effect instructs a player to name a card and the player wants to name a flip card‘s
alternative name, the player may do so.