Mutate

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Click here for my EDH Commander decks
 
Silly deck with all the Mutate cards.
If Surgeon General is not allowed, I think I would use Cromat instead (shown in sideboard).
 
Mana Acceleration (12): General (1): Non-Mutate (13): Sideboard (Omitted/Cut card ideas):
1 Cloud Key 1 Surgeon General Commander 1 Sword of Light and Shadow 1 Colfenor, the Last Yew
1 Conduit of Ruin   1 Chulane, Teller of Tales 1 Cromat
1 Planar Gate Mutate (38): 1 Karador, Ghost Chieftain 1 Soulquake
1 The Immortal Sun 1 Mysterious Egg 1 Muldrotha, the Gravetide 1 Storrev, Devkarin Lich
1 Animar, Soul of Elements 1 Boneyard Lurker 1 Disturbed Burial 1 Midnight Recovery
1 Mirari's Wake 1 Brokkos, Apex of Forever 1 Oversold Cemetery  
1 Rakdos, Lord of Riots 1 Illuna, Apex of Wishes 1 Palace Siege  
1 Nylea, Keen-Eyed 1 Lore Drakkis 1 Phyrexian Reclamation  
1 Skyshroud Claim 1 Necropanther 1 Soul of Innistrad  
1 The Mending of Dominaria 1 Nethroi, Apex of Death 1 Equilibrium  
1 Verdant Confluence 1 Otrimi, the Ever-Playful 1 Genesis  
1 Zendikar Resurgent 1 Parcelbeast 1 Emeria Shepherd  
  1 Regal Leosaur 1 Sigil of the New Dawn  
Lands (36): 1 Snapdax, Apex of the Hunt    
1 Underground Sea 1 Trumpeting Gnarr    
1 Badlands 1 Vadrok, Apex of Thunder    
1 Tundra 1 Cavern Whisperer    
1 Taiga 1 Chittering Harvester    
1 Savannah 1 Dirge Bat    
1 Bayou 1 Insatiable Hemophage    
1 Scrubland 1 Mindleecher    
1 Tropical Island 1 Zagoth Mamba    
1 Volcanic Island 1 Archipelagore    
1 Plateau 1 Dreamtail Heron    
1 Crumbling Necropolis 1 Pollywog Symbiote    
1 Arcane Sanctum 1 Pouncing Shoreshark    
1 Savage Lands 1 Sea-Dasher Octopus    
1 Seaside Citadel 1 Souvenir Snatcher    
1 Jungle Shrine 1 Auspicious Starrix    
1 Opulent Palace 1 Essence Symbiote    
1 Sandsteppe Citadel 1 Gemrazer    
1 Nomad Outpost 1 Glowstone Recluse    
1 Frontier Bivouac 1 Migratory Greathorn    
1 Mystic Monastery 1 Sawtusk Demolisher    
1 Indatha Triome 1 Cloudpiercer    
1 Ketria Triome 1 Everquill Phoenix    
1 Raugrin Triome 1 Porcuparrot    
1 Savai Triome 1 Cubwarden    
1 Zagoth Triome 1 Huntmaster Liger    
1 Alchemist's Refuge 1 Majestic Auricorn    
1 Command Tower 1 Vulpikeet    
1 Path of Ancestry      
1 Reflecting Pool      
1 Winding Canyons      
1 Swamp      
1 Island      
1 Forest      
1 Mountain      
1 Plains      
1 Sol Ring