3ERevised Edition

Underground Sea

Underground Sea from Revised Edition
Underground Sea from Revised Edition

Land   

{ocT}: Add either {B} or {U} to your mana pool. Counts as both swamp and islands and is affected by spells that affect either. If a spell destroys one of these land types, this card is destroyed; if a spell alters one of these land types, the other land type is unaffected.

3E • ENRob Alexander

Legal in: Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

View this MTG card on Gatherer
10/1/2008
This has the mana abilities associated with both of its basic land types.
10/1/2008
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.

Card Underground Sea is not on TCGPlayer.