Name: Martyrs of Korlis Cost: 3WW Type: Creature -- Human Pow/Tgh: 1/6 Rules Text: As long as this creature is untapped, all damage that would be dealt to you by artifacts is dealt to this creature instead. Set/Rarity: Antiquities uncommon, Masters Edition IV uncommon Price: $5.87

Name: Martyrs' Tomb Cost: 2WB Type: Enchantment Rules Text: Pay 2 life: Prevent the next 1 damage that would be dealt to target creature this turn. Set/Rarity: Apocalypse uncommon Price: $0.18

Name: Marut Cost: 8 Type: Artifact Creature -- Construct Pow/Tgh: 7/7 Rules Text: Trample When this creature enters, if mana from a Treasure was spent to cast it, create a Treasure token for each mana from a Treasure spent to cast it. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Set/Rarity: Commander Legends: Battle for Baldur's Gate common Price: $0.07

Name: Marvin, Murderous Mimic Cost: 2 Type: Legendary Artifact Creature -- Toy Pow/Tgh: 2/2 Rules Text: Marvin has all activated abilities of creatures you control that don't have the same name as this creature. Set/Rarity: Duskmourn: House of Horror Promos rare, Duskmourn: House of Horror rare Price: $1.98

Name: Masako the Humorless Cost: 2W Type: Legendary Creature -- Human Advisor Pow/Tgh: 2/1 Rules Text: Flash Tapped creatures you control can block as though they were untapped. Set/Rarity: Champions of Kamigawa rare Price: $21.99

Name: Mascot Exhibition Cost: 7 Type: Sorcery -- Lesson Rules Text: Create a 2/1 white and black Inkling creature token with flying, a 3/2 red and white Spirit creature token, and a 4/4 blue and red Elemental creature token. Set/Rarity: Magic Online Promos mythic, Strixhaven: School of Mages mythic, Strixhaven: School of Mages Promos mythic Price: $0.50

Name: Mask of Avacyn Cost: 2 Type: Artifact -- Equipment Rules Text: Equipped creature gets +1/+2 and has hexproof. (It can't be the target of spells or abilities your opponents control.) Equip {3} Set/Rarity: Innistrad uncommon, Commander Legends uncommon Price: $0.70

Name: Mask of Griselbrand Cost: 1BB Type: Legendary Artifact -- Equipment Rules Text: Equipped creature has flying and lifelink. Whenever equipped creature dies, you may pay X life, where X is its power. If you do, draw X cards. Equip {3} Set/Rarity: Magic Online Promos rare, Innistrad: Midnight Hunt Promos rare, Innistrad: Midnight Hunt rare, Innistrad: Double Feature rare, Duskmourn: House of Horror Commander rare Price: $0.41

Name: Mask of Intolerance Cost: 2 Type: Artifact Rules Text: At the beginning of each player's upkeep, if there are four or more basic land types among lands that player controls, this artifact deals 3 damage to that player. Set/Rarity: Apocalypse rare Price: $0.22

Name: Mask of Law and Grace Cost: W Type: Enchantment -- Aura Rules Text: Enchant creature Enchanted creature has protection from black and from red. Set/Rarity: Urza's Destiny common Price: $1.32

Name: Mask of Memory Cost: 2 Type: Artifact -- Equipment Rules Text: Whenever equipped creature deals combat damage to a player, you may draw two cards. If you do, discard a card. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) Set/Rarity: Mirrodin uncommon, Planechase uncommon, Commander 2014 uncommon, Secret Lair Drop rare, The List uncommon, Commander Legends uncommon, Warhammer 40,000 Commander uncommon, Phyrexia: All Will Be One Commander uncommon, Final Fantasy Commander uncommon Price: $0.32

Name: Masked Blackguard Cost: 1B Type: Creature -- Human Rogue Pow/Tgh: 2/1 Rules Text: Flash (You may cast this spell any time you could cast an instant.) {2}{B}: This creature gets +1/+1 until end of turn. Set/Rarity: Core Set 2021 common, Ravnica: Clue Edition common, Foundations Jumpstart common Price: $0.03

Name: Masked Gorgon Cost: 4B Type: Creature -- Gorgon Pow/Tgh: 5/5 Rules Text: Green creatures and white creatures have protection from Gorgons. Threshold -- This creature has protection from green and from white as long as there are seven or more cards in your graveyard. Set/Rarity: Judgment rare Price: $0.39

Name: Maskwood Nexus Cost: 4 Type: Artifact Rules Text: Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. {3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.) Set/Rarity: Magic Online Promos rare, Secret Lair Drop rare, The List rare, Kaldheim Promos rare, Kaldheim rare, Commander Legends: Battle for Baldur's Gate rare, Modern Horizons 3 Commander rare, Bloomburrow Commander rare, Aetherdrift Commander rare Price: $0.94

Name: Mass Calcify Cost: 5WW Type: Sorcery Rules Text: Destroy all nonwhite creatures. Set/Rarity: Shadowmoor rare, Salvat 2011 rare, Magic 2015 rare Price: $1.71

Name: Mass Production Cost: 5W Type: Sorcery Rules Text: Create four 1/1 colorless Soldier artifact creature tokens. Set/Rarity: The Brothers' War uncommon Price: $0.09

Name: Mass of Ghouls Cost: 3BB Type: Creature -- Zombie Warrior Pow/Tgh: 5/3 Rules Text: Set/Rarity: Future Sight common, Tenth Edition common, Time Spiral Remastered common Price: $0.05

Name: Massacre Cost: 2BB Type: Sorcery Rules Text: If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn. Set/Rarity: Nemesis uncommon, Magic Online Theme Decks uncommon, Secret Lair Drop rare, The List uncommon Price: $0.38

Name: Massacre Girl Cost: 3BB Type: Legendary Creature -- Human Assassin Pow/Tgh: 4/4 Rules Text: Menace When Massacre Girl enters, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creature other than Massacre Girl gets -1/-1 until end of turn. Set/Rarity: War of the Spark rare, War of the Spark Promos rare, Secret Lair Drop rare, Ravnica Remastered rare, Outlaws of Thunder Junction Commander rare, Duskmourn: House of Horror Commander rare, Marvel Universe mythic Price: $0.28

Name: Massacre Girl, Known Killer Cost: 2BB Type: Legendary Creature -- Human Assassin Pow/Tgh: 4/4 Rules Text: Menace Creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls dies, if its toughness was less than 1, draw a card. Set/Rarity: Murders at Karlov Manor mythic, Murders at Karlov Manor Promos mythic, Lorwyn Eclipsed Commander mythic Price: $0.73