Remove this card from your deck before playing if you're not playing for ante.
This artifact enters tapped.

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: Exile this artifact and target nontoken permanent an opponent owns. That player may pay 10 life. If they do, put this card into its owner's graveyard. Otherwise, that player owns this card and you own the other exiled card.
If the tablet is not still on the battlefield when the ability resolves, it is not exiled. The other player still has the choice to pay 10 life, and you still become the owner of their card if they choose not to do so.