Crag Mire

When Crag Mire enters the battlefield, you choose whether it is a Swamp or Mountain.
If Crag Mire is a Swamp, it has, "{t} Add {b}."
If Crag Mire is a Mountain, it has, "{t}Add {r}."
{b/r}, {t}: Return Crag Mire to its owner's hand.