Cieran Land, S Magdurus Mntns

{t}: Add either {w} or {r} to your mana pool. The
next time you use this ability during this turn
you have to chose the option you didn't chose
this time.
Tap X times X basic mountains you control:
Search your library for a land with a converted
mana cost of less than X and put it into play.
"Even before the Great Downfall, people used to bury
their secrets here. Nowadays, it has only gotten deeper
and stranger." —Bottler, ruler of chemicals