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River Song's Diary
Oracle Text
Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves.
At the beginning of your upkeep, if there are four or more cards exiled with this artifact, choose one of them at random. You may cast it without paying its mana cost.
Card Details
Mana CostSet
Character Background
River Song’s Diary is a deliciously volatile value engine that best suits control or spell-slinging midrange decks, where patience and long games let the “notes” pile up before the diary starts answering back. By imprinting instants and sorceries cast from hand, it turns every cantrip, removal spell, and combat trick into future fuel instead of a one-time resource, and once four cards are exiled it begins giving you a free random cast each upkeep. That randomness is real, so deckbuilding should favor a dense package of broadly useful spells rather than narrow silver bullets; think flexible interaction, card draw, and modal instants or sorceries that remain good whenever they reappear. It also pairs well with effects that care about spells cast without paying mana, or with cards that let you cast from exile, since the Diary creates a steady stream of extra opportunities. In Doctor Who flavor terms, it feels like planning ahead with time itself—rewarding decks that can survive the early turns and then snowball.
Generated using gpt-5.4-mini
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Character Background
River Song’s Diary is a deliciously volatile value engine that best suits control or spell-slinging midrange decks, where patience and long games let the “notes” pile up before the diary starts answering back. By imprinting instants and sorceries cast from hand, it turns every cantrip, removal spell, and combat trick into future fuel instead of a one-time resource, and once four cards are exiled it begins giving you a free random cast each upkeep. That randomness is real, so deckbuilding should favor a dense package of broadly useful spells rather than narrow silver bullets; think flexible interaction, card draw, and modal instants or sorceries that remain good whenever they reappear. It also pairs well with effects that care about spells cast without paying mana, or with cards that let you cast from exile, since the Diary creates a steady stream of extra opportunities. In Doctor Who flavor terms, it feels like planning ahead with time itself—rewarding decks that can survive the early turns and then snowball.
Generated using gpt-5.4-mini · Updated at 2026-08-11 01:10:45 UTC