---
name: "Unholy Annex // Ritual Chamber"
mana_cost: "{2}{B} // {3}{B}{B}"
cmc: 8
type_line: "Enchantment — Room // Enchantment — Room"
colors: ["B"]
color_identity: ["B"]
keywords: []
set: "DSK"
set_name: "Duskmourn: House of Horror"
collector_number: "118"
rarity: "rare"
artist: "Matteo Bassini"
oracle_id: "bd388ad9-a47b-4b0b-b94a-8e4343cd3de5"
canonical_url: "https://avascry.com/printing/unholy-annex-ritual-chamber-dsk"
legalities:
  commander: "legal"
  standard: "legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Unholy Annex // Ritual Chamber
- **Mana Cost:** `{2}{B} // {3}{B}{B}` (CMC: 8)
- **Type:** Enchantment — Room // Enchantment — Room

## Oracle Text
(No Oracle text)

## Top 4096-Dim Neural Synergies
1. [Defiled Crypt // Cadaver Lab](/printing/defiled-crypt-cadaver-lab-dsk.md) — Enchantment — Room // Enchantment — Room
2. [Funeral Room // Awakening Hall](/printing/funeral-room-awakening-hall-dsk.md) — Enchantment — Room // Enchantment — Room
3. [Derelict Attic // Widow's Walk](/printing/derelict-attic-widows-walk-dsk.md) — Enchantment — Room // Enchantment — Room
4. [Cramped Vents // Access Maze](/printing/cramped-vents-access-maze-dsc.md) — Enchantment — Room // Enchantment — Room
5. [Charred Foyer // Warped Space](/printing/charred-foyer-warped-space-pdsk.md) — Enchantment — Room // Enchantment — Room
6. [Polluted Cistern // Dim Oubliette](/printing/polluted-cistern-dim-oubliette-dsc.md) — Enchantment — Room // Enchantment — Room

## Printing Details
- **Set:** Duskmourn: House of Horror (DSK) #118
- **Rarity:** Rare
- **Artist:** Matteo Bassini
- **Total Printings:** 14 across all historical editions

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