自然の中には、真の意味で不毛の地などはないのだ。

砕土

砕土を唱えるための追加コストとして、土地を１つ生け贄に捧げる。
あなたのライブラリーから基本土地カードを最大２枚まで探し、それらを戦場に出す。 その後あなたのライブラリーを切り直す。

Harrow

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

The Roil redraws the world as it passes, leaving only the hedrons unchanged.

Foundations Jumpstart

Duskmourn: House of Horror Commander

Outlaws of Thunder Junction Commander

With each defeat, the hive learns. With each victory, it grows.

Warhammer 40,000 Commander

Because the "search" requires you to find a card with certain characteristics, you don't have to find the card if you don't want to.

The sacrifice of a land is part of the cost of casting Harrow. You can't pay this cost more than once to get a multiple effect.