Underwater Tunnel // Slimy Aquarium
Enchantment — Room // Enchantment — Room{U} // {3}{U}
When you unlock this door, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.) // When you unlock this door, manifest dread, then put a +1/+1 counter on that creature. (You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
Colour identity Blue · Surveil, Manifest, Manifest dread
In short
Underwater Tunnel // Slimy Aquarium has 1 listed printing; the most valuable is the printing from DSK at US$0.12 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
