Keening Stone - Retro Schematic Tweet Out of stock. CAD$ 0.52 Wishlist Details Color: Artifact Card Text: 5, Tap: Target player puts the top X cards of their library into their graveyard, where X is the number of cards in that player's graveyard. Rarity: R Cost: 6 Card Type: Artifact Name: Keening Stone Finish: Regular Card Number: 89 Set Name: The Brothers' War
