Tomb of Anger

As Tomb of Anger enters the battlefield, you
may reveal a Swamp or Mountain card from
your hand. If you don't, Tomb of Anger enters
the battlefield tapped.
{t}: Add {b} or {r}.
"Korriban, the birthplace of my power. I arrived as a
Sith Acolyte, trained in the dark side; now, an
apprentice to a Sith Lord. My rage has purpose. I will
hunt the Jedi and destroy the Galactic Republic."