Elbrus, the Binding Blade

[An Angry Fatman]

Does {Elbrus, the Binding Blade} have a color identity for EDH purposes? Is it considered a black card or a colorless?

[Nymuera]

Black. The color dot on the rear gives it it's color identity.

[Kaylesh]

For color identity, both front and back of a flip card are taken into account. Just as both sides of a split card are, and all colors of hybrid mana symbols.