---
name: "Elder Deep-Fiend"
mana_cost: "{8}"
cmc: 8
type_line: "Creature — Eldrazi Octopus"
colors: []
color_identity: ["U"]
keywords: ["Emerge", "Flash"]
set: "INR"
set_name: "Innistrad Remastered"
collector_number: "4"
rarity: "rare"
artist: "Jason Felix"
oracle_id: "4eafe717-4ba4-4901-8c67-11757230eb54"
canonical_url: "https://avascry.com/printing/elder-deep-fiend-inr"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Elder Deep-Fiend
- **Mana Cost:** `{8}` (CMC: 8)
- **Type:** Creature — Eldrazi Octopus
- **Keywords:** Emerge, Flash

## Oracle Text
Flash
Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, tap up to four target permanents.

## Top 4096-Dim Neural Synergies
1. [Drownyard Behemoth](/printing/drownyard-behemoth-emn.md) — Creature — Eldrazi Crab
2. [Lashweed Lurker](/printing/lashweed-lurker-emn.md) — Creature — Eldrazi Horror
3. [Vexing Scuttler](/printing/vexing-scuttler-emn.md) — Creature — Eldrazi Crab
4. [Twisted Riddlekeeper](/printing/twisted-riddlekeeper-mh3.md) — Creature — Eldrazi Sphinx
5. [Abundant Maw](/printing/abundant-maw-inr.md) — Creature — Eldrazi Leech
6. [Mockery of Nature](/printing/mockery-of-nature-emn.md) — Creature — Eldrazi Beast

## Printing Details
- **Set:** Innistrad Remastered (INR) #4
- **Rarity:** Rare
- **Artist:** Jason Felix

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

## Official Rulings
- *(2025-01-24)* The creature chosen to be sacrificed is still on the battlefield as the cost of the emerge spell is determined and as you activate mana abilities to cast the emerge spell. Its abilities may affect the spell’s cost, be activated to generate mana, and so on. However, if it has an ability that triggers when a spell is cast, it will have been sacrificed before that ability can trigger.
- *(2025-01-24)* You may sacrifice a creature with a mana value of 0, such as a token creature that’s not a copy of another permanent, to cast a spell for its emerge cost. You’ll just pay the full emerge cost with no reduction.
- *(2025-01-24)* If you sacrifice a creature with {X} in its mana cost, that X is 0.
- *(2025-01-24)* The mana value of the back face of a double-faced card is the mana value of its front face. The mana value of a melded permanent is the sum of the mana values of its front faces. A creature that’s a copy of either has a mana value of 0.
- *(2025-01-24)* A creature’s mana value is determined solely by the mana symbols printed in its upper right corner (unless that creature is the back face of a double-faced card, is a melded permanent, or is copying something else; see below). If the mana cost includes {X}, X is 0. If it’s a single-faced card with no mana symbols in its upper right corner (because it’s an animated land, for example), its mana value is 0. Ignore any alternative costs or additional costs (such as kicker) that were paid as the creature was cast.
- *(2025-01-24)* Once you begin to cast a spell with emerge, no player may take actions until you’re done. Notably, opponents can’t try to remove the creature you wish to sacrifice.