Xenagos is one of the best ways to do that over and over again
A couple of normal versions maintained a value over $10 USD while serialized Praetor variants were still priced above $1,000

MTG Commander Masters Eldrazi Decklist Heres a full decklist that comes with the Eldrazi Unbound commander deck: Commander Zhulodok, Void Gorger Creatures 30 Endless One Hangarback Walker Omarthis, Ghostfire Initiate Stonecoil Serpent Crashing Drawbridge Ornithopter of Paradise Suspicious Bookcase Burnished Hart Matter Reshaper Palladium Myr Skittering Cicada Abstruse Archaic Myriad Construct Scaretiller Solemn Simulacrum Geode Golem Duplicant Endbringer Oblivion Sower Soul of New Phyrexia Steel Hellkite Bane of Bala Ged Meteor Golem Artisan of Kozilek Phyrexian Triniform Ancient Stone Idol Flayer of Loyalties Kozilek, the Great Distortion Metalwork Colossus It That Betrays Planeswalkers 1 Ugin, the Ineffable Instants 5 Spatial Contortion Warping Wail Titans Presence Desecrate Reality Not of This World Sorceries 3 Calamity of the Titans All Is Dust Rise of the Eldrazi Artifacts 21 Everflowing Chalice Sol Ring Endless Atlas Investigators Journal Lightning Greaves Mazemind Tome Mind Stone Thought Vessel Fireshrieker Mirage Mirror Transmogrifying Wand Unstable Obelisk Worn Powerstone Hedron Archive Mystic Forge Perilous Vault Thran Dynamo Forsaken Monument Dreamstone Hedron Kaldra Compleat Darksteel Monolith Lands 38 Arcane Lighthouse Arch of Orazca Blast Zone Bonders Enclave Eldrazi Temple Forge of Heroes Geier Reach Sanitarium Guildless Commons Mage-Ring Network Mirrorpool Reliquary Tower Rogues Passage Ruins of Oran-Rief Scavenger Grounds Sea Gate Wreckage Shrine of the Forsaken Gods Temple of the False God Tomb of the Spirit Dragon Tyrite Sanctum Urzas Mine Urzas Power Plant Urzas Tower War Room 15 Wastes Thats everything you need to know about the MTG Commander Masters Eldrazi precon deck

The laying of any card as a land is a neat mechanic and solves screw issues although it is not for Magic
However, it won't double the one created because you activate the first loyalty ability
Recursion is also key, so having ways to get our board back is a no-brainer and we definitely dont want to be feeding the Zombies