Scarletmoon Druid

When Scarletmoon Druid enters the battlefield, sacrifice a land. If you do, search your library for
two basic land cards and put them onto the battlefield tapped, then shuffle your library.
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"These Scarletmoon Druids, as they call themselves,
claim to know a way to calm the elements, but their
rituals don't seem to follow druidic laws."
— Armenia Oftleaf