Thats because a Masterpiece version of this card exists from Kaladesh
But no cheating
It doesn't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras attached to it, or any noncopy effects that have changed its power, toughness, types, color, and so on
My criteria for the following list includes how useful the commander may be in any individual case, how directly convenient it is for storm strategies, or how fun it can be to play
Akawalli, the Seething Tower Blightreaper Thallid Blightsower Thallid Boneyard Mycodrax Brackish Trudge Broodrage Mycoid Cankerbloom Corpsejack Menace Corpsejack Menace Deathbloom Thallid Deathbonnet Hulk Deathbonnet Sprout Deathcap Marionette Deathspore Thallid Feral Thallid Fungal Behemoth Fungal Colossus Fungal Shambler Fungus Elemental Fungus Sliver Fungusaur Ghave, Guru of Spores Insidious Fungus Lichenthrope Mindbender Spores Mold Adder Mold Demon Mold Folk Mold Shambler Molderhulk Moldgraf Scavenger Mycoid Shepherd Mycoloth Myconid Spore Tender Pallid Mycoderm Placid Rottentail Psychotrope Thallid Rhizome Lurcher Rot Shambler Saurian Symbiote Savage Thallid Skullcap Snail Slimefoot and Squee Slimefoot, the Stowaway Slimy Piper Sowing Mycospawn Spore Crawler Spore Flower Sporecrown Thallid Sporemound Sporesower Thallid Sporoloth Ancient Sproutback Trudge Swarm Shambler Synapse Necromage Tendril of the Mycotyrant Thallid Thallid Devourer Thallid Germinator Thallid Omnivore Thallid Shell-Dweller Thallid Soothsayer The Mycotyrant Thorn Thallid Tukatongue Thallid Undercellar Myconid Undergrowth Scavenger Utopia Mycon Vitaspore Thallid Xavier Sal, Infested Captain Yavimaya Sapherd
However, other ink combos are still very viable, and this doesnt hit at the core of gameplay of Steel which is winning through strength by putting up a huge wall of characters and outputting high damage
