Mox of changing moon

When Mox of changing moon enters the
battlefield you may exile one red and blue card
or one red card and one blue card until
Mox of changing moon leaves the battlefield.
If you do not, sacrifice Mox of changing moon.
{ut}: add {r} or {u}
{r}{u}{u/r}{u/r}{u/r}: return exiled card/s to your hand.
Sacrifice Mox of changing moon: You lose 5 life.