I wont say which one it is though
Players may roll the Planar die once a turn for free, and may pay mana for each subsequent roll, with the cost starting at 1 and increasing by 1 for each additonal roll
Hope it helps answer some of your questions
Here they are: Dual Lands Underground Sea: Grixis Control, U/B Deaths Shadow, Grixis Delver, Ad Nauseam Tendrils, Esper Stoneblade Volcanic Island: Grixis Control, Sneak and Show, Grixis Delver, Temur Delver, Ad Nauseam Tendrils Bayou: B/R Reanimator, Ad Nauseam Tendrils, Four-Color Loam, Turbo Depths Badlands: Grixis Control, B/R Reanimator, Four-Color Loam Tropical Island: Temur Delver, Infect Tundra: Miracles, U/W Stoneblade Scrubland: Four-Color Loam, Esper Stoneblade Savannah: Four-Color Loam Taiga: Lands, Four-Color Loam Other Cards City of Traitors: Sneak and Show, Eldrazi Stompy, Affinity, Mono-Red Prison The Tabernacle at Pendrell Vale: Lands, Four-Color Loam Intuition: Sneak and Show Null Rod: Miracles, Grixis Delver Lions Eye Diamond: Ad Nauseam Tendrils Mox Diamond: Lands, Four-Color Loam Drop of Honey: Lands Grim Monolith: Eldrazi Post Gilded Drake: Merfolk This list is eighteen cards long