Card intelligence brief
({T}: Add {U} or {B}.)
RSG INTELLIGENCE
Card-level signalWhat RSG is seeing
Sales, inventory, and broader Magic demand signals for Underground Sea.
This is a card-level signal.It applies to Underground Sea across printings—not specifically to the selected Vintage Masters #323 printing shown above.
Magic market signalExternal Magic demandBased on broader Magic demand signals.
RSG demandRSG is interestedDetailed live inventory, sales, targets, and acquisition thresholds stay inside RSG Demand Radar.
Research another cardSearch from here and move directly to the next card.
RSG intelligence changes as sales, inventory, and market signals change. A demand signal is not a binding purchase offer.
What the card does
Card text: Underground Sea
({T}: Add {U} or {B}.)
FUNCTIONAL ALTERNATIVES
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Recent relevant coverage
Underground Sea, Unlimited Edition (2ED) Price History - MTGGoldfish
Web · Mar 30, 2026
Underground Sea, Revised Edition (3ED) Price History - MTGGoldfish
Web · Mar 30, 2026
Underground Sea (Retro Frame) - 30th Anniversary Edition - Magic: The Gathering - TCGplayer
Web · Oct 12, 2022
[IT] Underground Sea - Underground Sea - Centurion – Hightlights of Commander Legends: Battle for Baldur's Gate - EDHREC
Web · Jun 25, 2022
Underground Sea (CE) - Collector's Edition - Magic: The Gathering - TCGplayer
Web · Aug 5, 2021
Underground Sea - Revised Edition (Foreign Black Border) - TCGplayer
Web · Jun 19, 2021
Community discussion
Question about fetch lands can I use misty rainforest to fetch underground sea? - Reddit
Reddit · Oct 30, 2026
Underground Sea proxy: Play or not? Do people care? - Reddit
Reddit · Apr 20, 2026
Purchased a NM Underground Sea - Arrived with a Huge Bend - Reddit
Reddit · Oct 15, 2025
Custom Underground sea, Rob Alexander (2005) - Reddit
Reddit · Aug 19, 2025
Unlimited underground sea - Reddit
Reddit · Jul 7, 2025
Videos
4 - Ending Today - Link Below: ***Beta Underground Sea (Shuffle Crease)*** MTG Beta Magic Kid… - YouTube
YouTube · Nov 2, 2026
1 - Ending Today - Link Below: 1993 MAGIC: THE GATHERING ALPHA #NNO UNDERGROUND SEA BGS 8.5 #Shorts - YouTube
YouTube · Oct 31, 2026
Underground Sea Extending a Steady Climb - Magic: The Gathering Market Snapshot - YouTube
YouTube · Aug 28, 2026
Bored of Underground Sea?? Legacy Bant Up The Beanstalk Control. MTG - YouTube
YouTube · Aug 4, 2025
Underground Sea - EDH - Brallin, Skyshark Rider & Shabraz, the Skyshark - YouTube
YouTube · Aug 20, 2020