Doubling Cube sees competitive metagame play in 1 format(s): Commander
My Overall Verdict After reviewing every major dual land cycle, three options stand above the rest for delivering consistent, powerful mana bases across formats: Fetch Lands remain the gold standard, providing perfect color access while enabling landfall triggers and deck thinning that smooth draws throughout the game
I think I like Duress since discard can pave the way for your easy quick wins combined with the pressure you can put on the board
Play this in secret partners games for some real political effect as well

Kibo's Monkeys | Commander | Abe Sargent Commander (1) 1 Kibo, Uktabi Prince Creatures (32) 1 Akroan Horse 1 Ancient Silverback 1 Bazaar Trader 1 Bloodline Pretender 1 Chameleon Colossus 1 Ferocious Tigorilla 1 Gorilla Chieftain 1 Gorilla Shaman 1 Gorilla Titan 1 Grunn, the Lonely King 1 Hooting Mandrills 1 Jolene, the Plunder Queen 1 Kird Chieftain 1 Kogla, the Titan Ape 1 Marching Duodrone 1 Masked Vandal 1 Pilgrim's Eye 1 Ragavan, Nimble Pilferer 1 Ravenous Baboons 1 Realmwalker 1 Silverback Elder 1 Silverback Shaman 1 Simian Grunts 1 Simian Sling 1 Simian Simulacrum 1 Simian Spirit Guide 1 Solemn Simulacrum 1 Taurean Mauler 1 Towering Gibbon 1 Uktabi Orangutan 1 Universal Automaton 1 Yavimaya Steelcrusher Planeswalkers (1) 1 Garruk, Primal Hunter Instants (4) 1 Beast Within 1 Heroic Intervention 1 Inspiring Call 1 Return of the Wildspeaker Sorceries (13) 1 Bushwhack 1 Cultivate 1 Farseek 1 Harmless Offering 1 Harmonize 1 Hunter's Prowess 1 Kodama's Reach 1 Nature's Lore 1 Primitive Justice 1 Rampant Growth 1 Shamanic Revelation 1 Three Visits 1 Vandalblast Enchantments (3) 1 Fires of Yavimaya 1 Rhythm of the Wild 1 Viridian Revel Artifacts (7) 1 Bucknard's Everfull Purse 1 Liquimetal Coating 1 Liquimetal Torque 1 Maskwood Nexus 1 Monkey Cage 1 Pendant of Prosperity 1 Thran Forge Lands (39) 8 Forest 6 Mountain 1 Access Tunnel 1 Blighted Woodland 1 Boseiju, Who Endures 1 Castle Garenbrig 1 Cinder Glade 1 Command Tower 1 Game Trail 1 Gruul Turf 1 Hall of Tagsin 1 Highland Forest 1 Kessig Wolf Run 1 Mutavault 1 Path of Ancestry 1 Rockfall Vale 1 Rogue's Passage 1 Rootbound Crag 1 Scavenger Grounds 1 Sheltered Thicket 1 Skarrg, the Rage Pits 1 Stomping Ground 1 Temple of Abandon 1 Treasure Vault 1 Treetop Village 1 War Room 1 Wooded Ridgeline Other cards you could add include the massive price tag Cavern of Souls when I already tossed in Ragavan, the flavorful Tooth and Nail, another big price tag in Doubling Season, Tree Monkey to block flyers, Zodiac Monkey to get unblockage with Forestwalk, Summit Apes, Kindred Summons, Primal Rage, Herald's Horn, Steely Resolve, Obelisk of Urd, Riptide Replicator, Appetite for the Unnatural, Gargantuan Gorilla, Wily Bandar to get a big and potentially indestructible dork, Metallic Mimic, or loads more
