Details
- Artist: Cliff Childs
- Collector Number: 43624
- Available only as foil
- Rarity: rare
- Underground Sea is on the Reserved List.
- Released: 2013-01-11
- Set: Magic Online Promos
Legalities
- legal Commander
- legal Duel Commander
- legal Legacy
- legal MTGO Commander
- legal Vintage
Rulings
- 2008-10-01 This has basic land types, but it isn't a basic land. Things that affect basic lands don't affect it. Things that affect basic land types do.
- 2008-10-01 This has the mana abilities associated with both of its basic land types.
Printings
- 30th Anniversary Edition — 281 578 (rare)
- Legacy Championship (special)
- Vintage Masters (rare)
- Magic Online Promos (rare)
- Masters Edition IV (rare)
- Masters Edition II (rare)
- Revised Edition (rare)
- Intl. Collectors' Edition (rare)
- Collectors' Edition (rare)
- Unlimited Edition (rare)
- Limited Edition Beta (rare)
- Limited Edition Alpha (rare)
Foreign names
- Unterirdischer See
- Mer souterraine
- Mare Sotterraneo