Commanders: M
228 commanders. Each has a deck guide with its most-played cards.
- M.O.D.O.K.
- M.O.D.O.K., Evil Intellect
- M'Baku, Jabari Chieftain
- Ma Chao, Western Warrior
- Maarika, Brutal Gladiator
- Mabel, Bitter Recluse
- Mabel, Heir to Cragflame
- Mabel, Valley Hero
- MacCready, Lamplight Mayor
- MACH-1, Swooping Scoundrel
- Machine Man, Model X-51
- Madame Hydra
- Madame Hydra, Reanimated
- Madame Masque
- Madame Null, Power Broker
- Madame Vastra
- Madame Web, Clairvoyant
- Maelstrom Wanderer
- Maester Seymour
- Maeve, Insidious Singer
- Maga, Traitor to Mortals
- Magar of the Magic Strings
- Magda, Brazen Outlaw
- Magda, the Hoardmaster
- Mageta the Lion
- Magnus the Red
- Magus Lucea Kane
- Maha, Its Feathers Night
- Mahadi, Emporium Master
- Mai and Zuko
- Mai, Jaded Edge
- Mai, Scornful Striker
- Mairsil, the Pretender
- Maja, Bretagard Protector
- Major Teroh
- Malcator, Purity Overseer
- Malcolm, Alluring Scoundrel
- Malcolm, Keen-Eyed Navigator
- Malcolm, the Eyes
- Malfegor
- Malik, Grim Manipulator
- Mangara of Corondor
- Mangara, the Diplomat
- Mannichi, the Fevered Dream
- Maralen of the Mornsong
- Maralen, Fae Ascendant
- Marath, Will of the Wild
- Maraxus of Keld
- Marchesa, Dealer of Death
- Marchesa, the Black Rose
- Marcus, Mutant Mayor
- Marhault Elsdragon
- Mari, the Killing Quill
- Marina Vendrell
- Marisi, Breaker of the Coil
- Marneus Calgar
- Marrow-Gnawer
- Martha Jones
- Márton Stromgald
- Marvel Boy, Noh-Varr
- Marvin, Murderous Mimic
- Marvo, Deep Operative
- Marwyn, the Clearcutter
- Marwyn, the Nurturer
- Marwyn, the Preserver
- Mary Jane Watson
- Mary Read and Anne Bonny
- Masako the Humorless
- Mass of Mysteries
- Massacre Girl
- Massacre Girl, Known Killer
- Massacre Girl, Most Wanted
- Master Pakku
- Master Piandao
- Mastermind Plum
- Masumaro, First to Live
- Mathas, Fiend Seeker
- Mathise, Surge Channeler
- Matoya, Archon Elder
- Matt Murdock, Justice Seeker
- Mauhúr, Uruk-hai Captain
- Mavinda, Students' Advocate
- Mavren Fein, Dusk Apostle
- Maximus, Knight Apparent
- Mayael the Anima
- Mazirek, Kraul Death Priest
- Mazzy, Truesword Paladin
- Me, the Immortal
- Medomai the Ageless
- Medusa, Inhuman Queen
- Megatron, Tyrant // Megatron, Destructive Force
- Melek, Izzet Paragon
- Melek, Reforged Researcher
- Melira, Sylvok Outcast
- Melira, the Living Cure
- Meloku the Clouded Mirror
- Memnarch
- Memnarch, the Warden
- Mendicant Core, Guidelight
- Meneldor, Swift Savior
- Meren of Clan Nel Toth
- Meria, Scholar of Antiquity
- Meriadoc Brandybuck
- Merieke Ri Berit
- Merry, Esquire of Rohan
- Merry, Warden of Isengard
- Metalhead
- Miara, Thorn of the Glade
- Mica, Reader of Ruins
- Michelangelo, Game Master
- Michelangelo, Improviser
- Michelangelo, Mutant BFF
- Michelangelo, On the Scene
- Michelangelo, the Heart
- Michelangelo, Weirdness to 11
- Michiko Konda, Truth Seeker
- Migloz, Maze Crusher
- Miirym, Sentinel Wyrm
- Mikaeus, the Lunarch
- Mikaeus, the Unhallowed
- Mikey & Don, Party Planners
- Mikey & Leo, Chaos & Order
- Mikey & Mona, Mutant Sitters
- Mila, Crafty Companion // Lukka, Wayward Bonder
- Miles "Tails" Prower
- Miles Morales // Ultimate Spider-Man
- Millicent, Restless Revenant
- Mimeoplasm, Revered One
- Mina and Denn, Wildborn
- Minn, Wily Illusionist
- Minotaur, Roxxon CEO
- Minsc & Boo, Timeless Heroes
- Minsc, Beloved Ranger
- Minthara, Merciless Soul
- Minwu, White Mage
- Miriam, Herd Whisperer
- Mirko Vosk, Mind Drinker
- Mirko, Obsessive Theorist
- Mirri the Cursed
- Mirri, Cat Warrior
- Mirri, Weatherlight Duelist
- Mishra, Artificer Prodigy
- Mishra, Claimed by Gix
- Mishra, Eminent One
- Mishra, Excavation Prodigy
- Mishra, Lost to Phyrexia
- Mishra, Tamer of Mak Fawa
- Missy
- Mister Fantastic
- Mister Fantastic, Reed Richards
- Mister Hyde, Monster Within
- Mister Immortal
- Mister Negative
- Mistform Ultimus
- Misty Knight, Hero for Hire
- Mizzix of the Izmagnus
- Mizzix, Replica Rider
- MJ, Rising Star
- Mm'menon, the Right Hand
- Mm'menon, Uthros Exile
- Mockingbird, Ace Agent
- Mockingbird, Bobbi Morse
- Mog, Moogle Warrior
- Mogis, God of Slaughter
- Moira and Teshar
- Moira Brown, Guide Author
- Moira, Urborg Haunt
- Moku, Meandering Drummer
- Mole Man, Moloid Master
- Molecule Man
- Molimo, Maro-Sorcerer
- Molly Hayes, Runaway
- Molten Man, Inferno Incarnate
- Momir Vig, Simic Visionary
- Momo, Friendly Flier
- Momo, Playful Pet
- Momo, Rambunctious Rascal
- Mona Lisa, Ever Adaptable
- Mona Lisa, Science Geek
- Mondo Gecko
- Mondrak, Glory Dominus
- Monica Rambeau // Photon, Living Light
- Monk Gyatso
- Monoxa, Midway Manager
- Monstrosity of the Lake
- Moon Girl and Devil Dinosaur
- Moon-Boy, Dino Rider
- Moonstone, Harsh Mistress
- Moraug, Fury of Akoum
- Morbius the Living Vampire
- Morinfen
- Moritte of the Frost
- Morlun, Devourer of Spiders
- Morophon, the Boundless
- Morska, Undersea Sleuth
- Mortarion, Daemon Primarch
- Moseo, Vein's New Dean
- Mowu, Loyal Companion
- Mr. Foxglove
- Mr. House, President and CEO
- Mr. Orfeo, the Boulder
- Ms. Bumbleflower
- Ms. Marvel, Elastic Ally
- Ms. Marvel, Kamala Khan
- Mu Yanling, Wind Rider
- Muddle, the Ever-Changing
- Muerra, Trash Tactician
- Muldrotha, the Gravetide
- Multani, Maro-Sorcerer
- Multani, Yavimaya's Avatar
- Munda, Ambush Leader
- Mutagen Man, Living Ooze
- Muxus, Goblin Grandee
- Muzzio, Visionary Architect
- Myojin of Blooming Dawn
- Myojin of Cleansing Fire
- Myojin of Cryptic Dreams
- Myojin of Grim Betrayal
- Myojin of Infinite Rage
- Myojin of Life's Web
- Myojin of Night's Reach
- Myojin of Roaring Blades
- Myojin of Seeing Winds
- Myojin of Towering Might
- Myra the Magnificent
- Myrel, Shield of Argive
- Myrkul, Lord of Bones
- Mysterio, Master of Illusion