MTGArtifact
Tablet of Discovery
Uncommon{2}{R}
Secrets of Strixhaven (SOS)
Market price by printingCurrent & per-set prices are free
$2.34
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See Premium →When this artifact enters, mill a card. You may play that card this turn. (To mill a card, put the top card of your library into your graveyard.) {T}: Add {R}. {T}: Add {R}{R}. Spend this mana only to cast instant and sorcery spells.