Overgrown Caldera enters the battlefield tapped unless you control three or more Green permanents.
: Add or to your mana pool.
: Add to your mana pool. Put Overgrown Caldera on top of your library.
, : Shuffle your library.
: Add 
or 
to your mana pool.: Add 
to your mana pool. Put Overgrown Caldera on top of your library., : Shuffle your library.
