citizen's crowbar
I sacrificed Citizen's Crowbar to destroy Ghoulish Procession but then my two Mountains, 1 Plains, and my 1/1 green & white Citizen creature token were also sacrificed even though there is no game action that would allow me to sacrifice them too.
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OldSchoolNinja#05919 commented
Similar thing happened to me as described in the OP. Sacrificed the Crowbar to destroy Fable of the Mirror-Breaker and my lands + Citizen token were all also sacrificed.
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Mountain Panda#73741 commented
I agree, it has happened to me twice now. I used the crowbar to destroy an enchantment and it was wiped my whole board state.
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Ultimate#73598 commented
I used Citizen's Crowbar to destroy Audacity on a Halana and Alena, Partners and I lost my Command Tower, Plains, Forest x2, Botanical Plaza, and my Gala Greeters. Nothing that I know of in-game could've caused this.
(edit) it's actually under my backup account Knight That Time Forgot#04162 -
Sepi1337#11139 commented
Same thing happened to me. I used Citizen's Crowbar and it destroyed my entire board state lands, creatures, artifacts and enchantments all went into the graveyard.