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. Players can't pay life or sacrifice nonland permanents to cast spells or activate abilities.
In its hoofprints, barren dust becomes fertile ground.
![Yasharn, Implacable Earth [Zendikar Rising Prerelease Promos]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/35a359fc-3bb0-5e74-a6eb-4afb708430b4_5604db2b-4d0a-46fd-a788-b263739a1af6.jpg?v=1698560671&width=1445)