Elder Deep-Fiend
Elder Deep-Fiend: Creature - Eldrazi Octopus, Innistrad Remastered. MTG card printings, market prices, rulings, and format legality on Mana Grove.
- Mana cost
- {8}
- Mana value
- 8
- Type
- Creature - Eldrazi Octopus
- Colour identity
- Blue (U)
- Power / toughness
- 5/6
- Rarity
- Rare
- Set
- Innistrad Remastered (INR)
- Released
- 2025-01-24
- Collector number
- 4
- Artist
- Jason Felix
- Commander rank
- 7,735 (by how often it appears in Commander decks)
- Keywords
- Emerge, Flash
Build around this card with Grover
About Elder Deep-Fiend
Elder Deep-Fiend is a Magic: The Gathering card, a rare blue creature from Innistrad Remastered (INR), a Masters set released in January 2025. It is collector number 4 in that set, with art by Jason Felix. It costs {8} (eight generic mana) to cast, for a mana value of 8. It is a 5/6 creature. Its colour identity is blue. It is legal in Pioneer, Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Historic, Timeless, Gladiator and Penny Dreadful. It has been printed in 7 sets, from Eldritch Moon (2016) to Innistrad Remastered (2025). The latest aggregated market price for this printing is $0.28 (normal finish, as of 2026-11-03).
Card 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.
Market price
Latest aggregated market price for the normal finish of this printing: $0.28 (as of 2026-11-03).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Elder Deep-Fiend by format. Formats in which it is not legal are not listed.
| Pioneer | Legal |
|---|---|
| Modern | Legal |
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Oathbreaker | Legal |
| Brawl | Legal |
| Historic | Legal |
| Timeless | Legal |
| Gladiator | Legal |
| Penny Dreadful | Legal |
Other printings of Elder Deep-Fiend
Elder Deep-Fiend has been printed in 7 sets. The other printings are listed newest first, with the rarity and release year of each.
| Printing | Rarity | Year |
|---|---|---|
| Modern Horizons 3 Commander (M3C) #154 | Rare | 2024 |
| The List (PLST) #EMN-5 | Rare | 2023 |
| Shadows over Innistrad Remastered (SIR) #5 | Rare | 2023 |
| Commander Legends (CMR) #368 | Rare | 2020 |
| Eldritch Moon (EMN) #5 | Rare | 2016 |
| Eldritch Moon Promos (PEMN) #5s | Rare | 2016 |
Official rulings
The 8 most recent official rulings for Elder Deep-Fiend, newest first.
- 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.
- 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.
- If you sacrifice a creature with {X} in its mana cost, that X is 0.
- 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.
- 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.
- 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.
- You may sacrifice a creature with mana value greater than or equal to the emerge cost. If you do, you’ll pay only the colored mana component of the emerge cost.
- Colored mana components of emerge costs can’t be reduced with emerge.
Similar cards
Other creature cards with a blue colour identity, ranked by how often they appear in Commander decks.
In these precons
Elder Deep-Fiend is in the decklist of these preconstructed Commander decks.