Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
When Yavimaya Dryad enters, you may search your library for a Forest card, put it onto the battlefield tapped under target player's control, then shuffle.
Forestwalk
When Yavimaya Dryad comes into play, you may search your library for a Forest card and put it into play tapped under target player's control. If you do, shuffle your library.
The parched earth still shielded those few souls with the heart to call it home.