Cloudcrest Swamp enters the battlefield tapped unless you reveal an artifact card from your hand.
: Add or to your mana pool.
Put Cloudcrest Swamp on top of your library: Add to your mana pool.
, Sacrifice Cloudcrest Swamp: Add to your mana pool.
: Add 
or 
to your mana pool.
to your mana pool. , Sacrifice Cloudcrest Swamp: Add 
to your mana pool.
