Underground Sea

Legality

Format Legality
Vintage Legal
Duel Commander Legal
Commander / EDH Legal
Legacy Legal
Tiny Leaders Legal

Printings View all

Set Rarity
Vintage Masters Rare
Masters Edition IV Rare
Masters Edition II Rare
Revised Edition Rare
Unlimited Edition Rare
Collector's Edition Rare
International Collector's Edition Rare
Limited Edition Beta Rare
Limited Edition Alpha Rare

Combos Browse all

Underground Sea

Land — Island Swamp

(: Add or to your mana pool.)

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Price & Acquistion Set Price Alerts

Cardhoarder (MTGO) 3%

23.95 TIX $19.95 Foil

Isle of Cards

$314.81 Paper

Card Kingdom

$389.99

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Underground Sea Discussion

Lilbrudder on All Nightmare Long (SBT Primer)

1 day ago

Pheardemons: Carpet of flowers is one of the most broken cards in cEDH. It is an auto-include if you play green in cEDH pods due to the high concentration of blue decks. With that being said, it is a situational card at most commander nights given that people are more focused on fun decks and there are far fewer decks that consistently follow up a turn 1 Tropical Island with a turn 2 Underground Sea.

costrander3689: Thanks Brother!

Grantley91: No Original duals (can get by with other dual lands); No grim tutor (Its the worst tutor in the deck); imperial seal would hurt ALOT more to lose but not many people can afford it. You could replace these with a high number of iffy tutors that would imbalance the deck some and make one of the combos a focal point. Eldritch Evolution, Summoner's Pact, Merchant Scroll, Shred Memory; Muddle the Mixture Drift of Phantasms, Fauna Shaman could all be justified but aren't ideal. You could also just add more interaction. Beyond that cutting Force of Will or a Mox Diamond could make sense.

enpc: Extract is a solid tutor. If I was making food chain the primary combo I would definitely include it, but it is my backup atm. If I focus more on it its definitely a solid include and a great focused hate piece to decks with a single point of failure.

Sgtpopnfreash on Ad Nauseam Doomsday Zur

6 days ago

Second question. Do you think 2.1 average CMC is too high for Ad nauseam/DD Oloro? Its not as competitive as your deck because I dont have cards like Timetwister Grim Tutor Underground Sea, but I am trying to make it as strong as possible with what I have access to.

euananddalesaccount on Zombie Reanimator

1 week ago

is this meant to be competitive legacy? if not, the good. Because semi-competitive legacy decks use ODLs. Underground Sea should do the trick, with some Polluted Deltas.

Forkbeard on Grimgrin, Corpse-Born: Gravecrawler's Lament

1 week ago

Aside from assisting Grimgrin's ETB tapped factor, Amulet of Vigor is actually more handy than it looks considering I'm currently running 9 'enters tapped' lands. Unless I spruce up the land base, I'd have to really be struggling with cuts to consider axing Amulet. Totally agree with Syphon Flesh though, it's mediocre at best - every so often it shines but it's definitely a contender for replacement. Secrets of the Dead stays put! Not only is it fantastic from a thematic standpoint, the draw is insane with Gravecrawler in the mix (he's almost always my first tutor target as he enables virtually everything). At 3 mana, I'd hardly call it a win-more card.

Regarding your second paragraph, yeah...The overall deck synergy complements dozens of sneaky interactions.

Onto the lands - I like the idea of Crypt of Agadeem, Fetid Pools (really like the Island Swamp factor + cycling may come in handy if I pull it late game) & Nykthos, Shrine to Nyx in here, good calls. Also agree with your Island suggestion - although Blood Moon/Back to Basics are rare in my meta, it would still really suck. I would absolutely run Underground Sea but yeah, I'm not ready to drop $350 on an ABUR dual just yet. I don't think I'd cut Reliquary Tower for the aforementioned draw engine and as for Nephalia Drownyard & Balthor the Defiled, I ran both of those in here in previous iterations and ended up removing them at some point - Drownyard is too slow + too little value & I found I was running enough recursion without giving my opponents potential advantage as well.

Great feedback & suggestions McDeity, I appreciate it!

McDeity on Grimgrin, Corpse-Born: Gravecrawler's Lament

1 week ago

I respect the build. I'm not sure that I love Amulet of Vigor in the deck though, nor that Syphon Flesh is neccessary. Secrets of the Dead also feels slightly win-more since it looks like only Gravecrawler, Yawgmoth's Will, Army of the Damned's flashback, and Havengul Lich trigger it.

On the topic of Havengul Lich, I believe you already have the components of a somewhat messy combo (besides anything with Rooftop Storm- that's pretty obvious). Cast a Fatestitcher from the graveyard to gain a sweet tap ability; if you can get Grimgrin in there as well, you pickup a means to untap the Lich; add a land that can make larger doses of mana (e.g. Cabal Coffers), and you can cast all zombies from your graveyard. If your Coffers taps for enough, just feed creatures to Havengul to keep untapping the Coffer and recasting dudes from the sandbox. Geralf's Messenger works pretty well here as well (or anything with Undying), as you get two untaps. The only uncertainty I have is that Grimgrin's untap ability says to untap "Grimgrin," and I'm not sure how that translates to Havengul copying the ability (I've never found a ruling). All that does require a decent mana investment to get started though, so it's pretty much limited to the late-late game.

Somewhat still in the same vein, I'd reccomend Nykthos, Shrine to Nyx, Crypt of Agadeem, and Nephalia Drownyard to the list. Ooh, also an Underground Sea (budget permitting), Fetid Pools, and possibly Bad River (or other black fetch) and basic Island. The Nykthos is just good, and the Crypt+Drownyard combine well with your plethora of Zombie Apocalypse effects (though Balthor the Defiled is conspicuously missing). Underground Sea, Fetid Pools and Bad River just juice up Coffers a little more. The basic is a concession to Blood Moon/Back to Basics effects, even if it's otherwise miserable. Maybe Reliquary Tower could go? I cut it a long time ago, since discarding with the deck isn't that bad. Anyhow, you write a good intro and the list is one of the more sensible ones I've seen. Keep up the good work and God bless. -McDeity

MagicalHacker on In light of the recent ...

2 weeks ago

In light of the recent MTGO Commander Banlist announcement, I thought to ask everyone what the banlist would look like if they made it.

The following proposed banlist is my opinion of what the banlist should look like. You will see 3 criteria for what makes a card unfit for the format, and a list of what cards could be banned based on them:

Proposed banlist Show

LordGonti on Lord Silumgar's Tribute

3 weeks ago

I removed the tainted isle, as it seldom has swamps to make it do anything but give colourless mana. I may, after some testing, remove some of the dork maker lands for swamps and put it back. I also took the Underground Sea from another deck, as I am finding this one stronger. I added Deadeye Navigator, after I found one at my LGS

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