Mira's Endless Voyage

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker)

Search your library for up to X land cards. Put any number of those cards onto the battlefield tapped, then put the rest into the graveyard. For each land put into the graveyard this way, each opponent loses
2 life unless they sacrifice a permanent.

Centuries ago, a chaotic soul sought to see every corner of every world.