Sunken Hollow (TRC) from Star Trek Commander, available at 401 Games Canada.

• Set: Star Trek Commander
• Rarity: Rare
• Finish: Normal
• Card Type: Land
• Colour: Black, Blue, Multicolour
• Mana Value: 0
• Subtype: Island, Swamp
• Artist: Nadia Hurianova
• Card Text: (T: Add U or B.)
  This land enters tapped unless you control two or more basic lands.