![Keening Stone (Retro Schematic) (Serial Numbered) [The Brothers' War Retro Artifacts] - La Boîte Mystère ( The Mystery Box)](http://laboitemystere.com/cdn/shop/products/e5aed6452561a81a8b287493a4a555cb.jpg?v=1692542083&width=1946)
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Magic: The Gathering
Keening Stone (Retro Schematic) (Serial Numbered) [The Brothers' War Retro Artifacts]
Keening Stone (Retro Schematic) (Serial Numbered) [The Brothers' War Retro Artifacts]
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| Set: | The Brothers' War Retro Artifacts |
| Type: | Artifact |
| Rarity: | Rare |
| Cost: | {6} |
{5}, {T}: Target player mills X cards, where X is the number of cards in that player's graveyard.
"The new prototype utilizing a rotational axis is marvelously effective: it makes me want to tear my own ears off."
—Ashnod, to her assistants
![Keening Stone (Retro Schematic) (Serial Numbered) [The Brothers' War Retro Artifacts] - La Boîte Mystère ( The Mystery Box)](http://laboitemystere.com/cdn/shop/products/e5aed6452561a81a8b287493a4a555cb.jpg?v=1692542083&width=1445)