(Sunken Farm isn't a spell.)
Sunken Farm enters the battlefield tapped unless you pay .
, : Scry 2.
, Pay 1 life, Sacrifice Sunken Farm: Search your library for a Forest or Island card and put it onto the battlefield, then shuffle your library.
.
, 
: Scry 2., Pay 1 life, Sacrifice Sunken Farm: Search your library for a Forest or Island card and put it onto the battlefield, then shuffle your library.
