Benthic Explorers (On the Rocks) Tweet Buy this product instead Details Color: Blue Card Text: T Untap a tapped land an opponent controls. If you do, add one mana of any type that land could produce to your mana pool. Rarity: C Cost: 3U Pow/Tgh: 2/4 Card Type: Creature - Merfolk Name: Benthic Explorers Finish: Regular Set Name: Alliances