---
name: "River Song's Diary"
mana_cost: "{3}"
cmc: 3
type_line: "Artifact — Book"
colors: []
color_identity: []
keywords: ["Imprint"]
set: "WHO"
set_name: "Doctor Who"
collector_number: "182"
rarity: "rare"
artist: "Tatiana Veryayskaya"
oracle_id: "60a63eb4-b0f7-4930-9bf6-afd42261d4d0"
canonical_url: "https://avascry.com/printing/river-songs-diary-who"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# River Song's Diary
- **Mana Cost:** `{3}` (CMC: 3)
- **Type:** Artifact — Book
- **Keywords:** Imprint

## 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.

## Top 4096-Dim Neural Synergies
1. [Panoptic Mirror](/printing/panoptic-mirror-dst.md) — Artifact
2. [Knowledge Pool](/printing/knowledge-pool-mbs.md) — Artifact
3. [Spellweaver Helix](/printing/spellweaver-helix-mrd.md) — Artifact
4. [Isochron Scepter](/printing/isochron-scepter-2xm.md) — Artifact
5. [Chrome Mox](/printing/chrome-mox-2xm.md) — Artifact
6. [Summoner's Egg](/printing/summoners-egg-5dn.md) — Artifact Creature — Egg

## Printing Details
- **Set:** Doctor Who (WHO) #182
- **Rarity:** Rare
- **Artist:** Tatiana Veryayskaya
- **Total Printings:** 8 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `not_legal` | Pioneer: `not_legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `not_legal`