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Underwater Tunnel // Slimy Aquarium Duskmourn: House of Horror MTG card

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Underwater Tunnel // Slimy Aquarium

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ENCHANTMENT — ROOM // ENCHANTMENT — ROOM Common
Duskmourn: House of Horror DSK #79 EDHREC #11,182
$0.19
+5.6% 7 days

Price history

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Underwater Tunnel // Slimy Aquarium price history chart, default range 3 months. currently $0.19.

View buying optionsMana Pool · Nonfoil

Underwater Tunnel // Slimy Aquarium Price Summary

Underwater Tunnel // Slimy Aquarium's current headline price is $0.19.

Underwater Tunnel // Slimy Aquarium Printings & Prices

1 printings

Underwater Tunnel // Slimy Aquarium has 1 tracked printing across 1 sets, in nonfoil and foil finishes.

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Sell Underwater Tunnel // Slimy Aquarium: Buylist Offers

2 offers
Buyer Printing Finish Cash offer Retail Spread
Card Kingdom DSK #79 Foil
Card Kingdom DSK #79 Nonfoil

Underwater Tunnel // Slimy Aquarium Rules Text & Legality

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Enchantment — Room // Enchantment — Room — mana cost {U} // {3}{U}

Underwater Tunnel // Slimy Aquarium is legal in Standard, Pioneer, Modern, Legacy, Commander and Pauper.

Underwater Tunnel // Slimy Aquarium Rulings

5 most recent
  • Sep 20, 2024 A permanent that turns face up or face down changes characteristics but is otherwise the same permanent. Spells and abilities that were targeting that permanent and Auras and Equipment that were attached to that permanent aren't affected unless the new characteristics of the object change the legality of those targets or attachments.
  • Sep 20, 2024 An ability that triggers "when you unlock this door" triggers when that door becomes unlocked. This can happen one of two ways: (1) the door becomes unlocked on the battlefield or (2) the door becomes unlocked as the Room enters the battlefield because you cast the corresponding half. In the latter case, since the door becoming unlocked is what causes the ability to trigger, effects that cause abilities that trigger when a permanent enters to trigger an additional time (such as that of Panharmonicon) won't apply.
  • Sep 20, 2024 An ability that triggers "whenever you fully unlock a Room" triggers when a door becomes unlocked and the other door of that Room is already unlocked, or when both doors of that Room become unlocked simultaneously.
  • Sep 20, 2024 Any time you have priority during a main phase of your turn and the stack is empty, you may pay the mana cost of a locked door (also called its "unlock cost"). That door becomes unlocked. This is a special action. It doesn't use the stack and can't be responded to.
  • Sep 20, 2024 Any time you have priority, you can turn a manifested permanent you control face up by revealing that it's a creature card (ignoring any copy effects or type-changing effects that might be applying to it) and paying its mana cost. This is a special action. It doesn't use the stack and can't be responded to.

Reprints & Reprint Risk

2 printings

Underwater Tunnel // Slimy Aquarium has been reprinted 2 times. The Duskmourn: House of Horror reprint cut the price 95% in 30 days.

Set Date Rarity Treatment Price before Day 1 30 days 90 days
DSK #79 2024-09-27 Common Standard
DSK #79 2024-09-27 Common Standard

Underwater Tunnel // Slimy Aquarium in Commander

Underwater Tunnel // Slimy Aquarium is the #11,182 most-played card on EDHREC, down 94 places over the last 30 days.

Underwater Tunnel // Slimy Aquarium FAQ

How much is Underwater Tunnel // Slimy Aquarium worth?

Underwater Tunnel // Slimy Aquarium is worth about $0.19 for its cheapest playable printing as of Sep 24, 2026.

Is Underwater Tunnel // Slimy Aquarium legal in Commander?

Yes — Underwater Tunnel // Slimy Aquarium is legal in Commander. It is also legal in Standard, Pioneer, Modern, Legacy and Pauper.

Has Underwater Tunnel // Slimy Aquarium been reprinted?

Yes — Underwater Tunnel // Slimy Aquarium has been reprinted 2 times, with 1 printings tracked on The Index.

Why is Underwater Tunnel // Slimy Aquarium cheap?

Underwater Tunnel // Slimy Aquarium trades at about $0.19 — 2 reprints keep supply plentiful, and Commander demand is modest (#11,182 on EDHREC).