Legendary Creature - Human Shaman Color tag templates(None) Keeper of Progenitus Whenever a player taps a Mountain, Forest, or Plains for mana, that player adds one mana of any type that land produced
Elevate your Commander experience with a storage solution thats as unique as your deck strategy
Crucially, starting an engine is a state-based action that happens as soon as you control a permanent with the ability, making it exceptionally difficult for an opponent to interact with via the stack

Act Ruby UC 134/204 Mushus Rocket Item Ruby UC 136/204 Sleepy Hollow The Bridge Loc Ruby UC 137/204 Judy Hopps On the Case Char Sapphire UC 140/204 Chef Louis In Over His Head Char Sapphire UC 147/204 Scuttle Birdbrained Char Sapphire UC 149/204 Jasmine Soothing Princess Char Sapphire UC 152/204 Ichabod Crane Scared Out of His Mind Char Sapphire UC 157/204 Pluto Clever Cluefinder Char Sapphire UC 163/204 Might Solve a Mystery Song Sapphire UC 164/204 Sudden Scare Act Sapphire UC 169/204 Inkrunner Item Sapphire UC 182/204 Black Heron Real Bad Egg Char Steel UC 183/204 Lexington Small in Stature Char Steel UC 184/204 David Xanatos Steel Clan Leader Char Steel UC 190/204 Broadway Sturdy and Strong Char Steel UC 193/204 Zeus Missing His Spark Char Steel UC 197/204 He Hurled His Thunderbolt Song Steel UC 198/204 The Games Afoot
While cards with basic land types like Swamp have the color identity associated that land, Urborg is not innately a swamp
Having an entire mechanic banned would make for a great headline, but it would be terrible for Magic.