Shadowden Mystic

When Shadowden Mystic enters the battlefield, you
may search your library for a basic land card and put
it onto the battlefield tapped, then if you control six
or more lands, create a 6/6 Green Entfolk with
"when this creature dies, create a scavenge token".
"The mystics tell of ancient powers that protected
us, those who face them wish they were just stories"