---
name: "Mnemonic Betrayal"
mana_cost: "{1}{U}{B}"
cmc: 3
type_line: "Sorcery"
colors: ["B", "U"]
color_identity: ["B", "U"]
keywords: []
set: "GRN"
set_name: "Guilds of Ravnica"
collector_number: "189"
rarity: "mythic"
artist: "Clint Cearley"
oracle_id: "aa41e0e6-d04e-48d6-8450-02b972dd0bb1"
canonical_url: "https://avascry.com/printing/mnemonic-betrayal-grn"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Mnemonic Betrayal
- **Mana Cost:** `{1}{U}{B}` (CMC: 3)
- **Type:** Sorcery

## Oracle Text
Exile all opponents' graveyards. You may cast spells from among those cards this turn, and mana of any type can be spent to cast them. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners' graveyards.
Exile Mnemonic Betrayal.

## Top 4096-Dim Neural Synergies
1. [Shadow of the Enemy](/printing/shadow-of-the-enemy-hoc.md) — Sorcery
2. [Strategic Betrayal](/printing/strategic-betrayal-tdm.md) — Sorcery
3. [Hedonist's Trove](/printing/hedonists-trove-dtk.md) — Enchantment
4. [Covetous Urge](/printing/covetous-urge-eld.md) — Sorcery
5. [Psychic Intrusion](/printing/psychic-intrusion-ths.md) — Sorcery
6. [Memory Plunder](/printing/memory-plunder-clb.md) — Instant

## Printing Details
- **Set:** Guilds of Ravnica (GRN) #189
- **Rarity:** Mythic
- **Artist:** Clint Cearley
- **Total Printings:** 11 across all historical editions

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