Whenever you gain life, each opponent loses 1 life.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Islandcycling (, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

Raid — At the beginning of your end step, if you attacked this turn, you may draw a card. If you do, discard a card.

Creature spells you cast cost less to cast.

Whenever another creature enters the battlefield under your control, Marauding Raptor deals 2 damage to it. If a Dinosaur is dealt damage this way, Marauding Raptor gets +2/+0 until end of turn.

Maraxus of Keld's power and toughness are each equal to the number of untapped artifacts, creatures, and lands you control.

All Walls able to block Marble Priest do so.

Prevent all combat damage that would be dealt to Marble Priest by Walls.

Whenever you commit a crime, you may pay . If you do, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard. (Targeting opponents, anything they control, and/or cards in their graveyards is a crime.)

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

Other creatures you control have dethrone.

Whenever a creature you control with a +1/+1 counter on it dies, return that card to the battlefield under your control at the beginning of the next end step.

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

Whenever Marchesa's Infiltrator deals combat damage to a player, draw a card.

Whenever Marching Duodrone attacks, each player creates a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

When Mardu Blazebringer attacks or blocks, sacrifice it at end of combat.

Raid — When Mardu Heart-Piercer enters the battlefield, if you attacked this turn, Mardu Heart-Piercer deals 2 damage to any target.

As an additional cost to cast this spell, discard a card.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Mardu Skullhunter enters the battlefield tapped.

Raid — When Mardu Skullhunter enters the battlefield, if you attacked this turn, target opponent discards a card.

Raid — When Mardu Warshrieker enters the battlefield, if you attacked this turn, add .

Rampage 1 <I>(Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)</I>

Fabricate 3 (When this creature enters the battlefield, put three +1/+1 counters on it or create three 1/1 colorless Servo artifact creature tokens.)

Whenever an artifact you control is put into a graveyard from the battlefield, target opponent loses life equal to Marionette Master's power.

Double strike

Marjhan doesn't untap during your untap step.

, Sacrifice a creature: Untap Marjhan. Activate only during your upkeep.

Marjhan can't attack unless defending player controls an Island.

: Marjhan gets -1/-0 until end of turn and deals 1 damage to target attacking creature without flying.

When you control no Islands, sacrifice Marjhan.

When Market Gnome dies, you gain 1 life and draw a card.

When Market Gnome is exiled from the battlefield while you're activating a craft ability, you gain 1 life and draw a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Lifelink

Other Vampires you control get +1/+1.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Lifelink

Markov Crusader has haste as long as you control another Vampire.

Whenever Markov Enforcer or another Vampire enters the battlefield under your control, Markov Enforcer fights up to one target creature an opponent controls.

Whenever a creature dealt damage by Markov Enforcer this turn dies, create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Lifelink

At the beginning of your end step, if you gained life this turn, you may pay . If you do, draw a card.

Haste

When Markov Warlord enters the battlefield, up to two target creatures can't block this turn.

Double strike

Master Tactician — Whenever one or more tokens enter the battlefield under your control, draw a card.

Chapter Master — : Create two 2/2 white Astartes Warrior creature tokens with vigilance.

Flying

Pay 4 life: Regenerate Marrow Bats.

All Rats have fear.

, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.

When Marsh Crocodile enters the battlefield, return a blue or black creature you control to its owner's hand.

When Marsh Crocodile enters the battlefield, each player discards a card.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Sacrifice a Swamp: Marsh Lurker gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Whenever Marsh Viper deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

When Marshdrinker Giant enters the battlefield, destroy target Island or Swamp an opponent controls.

This spell costs less to cast, where X is your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)

Whenever Márton Stromgald attacks, other attacking creatures get +1/+1 until end of turn for each attacking creature other than Márton Stromgald.

Whenever Márton Stromgald blocks, other blocking creatures get +1/+1 until end of turn for each blocking creature other than Márton Stromgald.

, Reveal X red cards from your hand, Sacrifice Martyr of Ashes: Martyr of Ashes deals X damage to each creature without flying.

When Martyr of Dusk dies, create a 1/1 white Vampire creature token with lifelink.

, Reveal X white cards from your hand, Sacrifice Martyr of Sands: You gain three times X life.

, Sacrifice a creature: Target creature can't attack this turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

When Martyr's Soul enters the battlefield, if you control no tapped lands, put two +1/+1 counters on it.

Whenever Marvo, Deep Operative attacks, clash with defending player. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Whenever you win a clash, draw a card. Then you may cast a spell from your hand with mana value 8 or less without paying its mana cost.

: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)

When Masked Admirers enters the battlefield, draw a card.

Whenever you cast a creature spell, you may pay . If you do, return Masked Admirers from your graveyard to your hand.

Flash (You may cast this spell any time you could cast an instant.)

: Masked Blackguard gets +1/+1 until end of turn.

Changeling (This card is every creature type.)

When Masked Vandal enters the battlefield, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

Menace

When Massacre Girl enters the battlefield, 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.

Creatures you control have wither.

Whenever a creature an opponent controls dies, if it had 0 or less toughness, you and that player lose 1 life and you draw a card.

Tap an untapped Cleric you control: Prevent the next 2 damage that would be dealt to any target this turn.

, : Tap target creature.