Yasharn, Implacable Earth

When Yasharn enters the battlefield, search
your library for a basic Forest card and a basic
Plains card, reveal those cards, put them into
your hand, then shuffle your library.
Players can't pay life or sacrifice nonland
permanents to cast spells or activate abilities.
"Look on my tribe, Moro. We grow small,
and we grow stupid. We will soon be nothing but
squealing game... that the humans hunt. "