Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Vigilance

Whenever this creature mutates, you gain 4 life.

Flying

When Malamet War Scribe enters, creatures you control get +2/+1 until end of turn.

Flash

Flying

Whenever Malcolm, Alluring Scoundrel deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost.

: Add .

, : Add one mana of any color.

When Manic Scribe enters, each opponent mills three cards.

Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, that player mills three cards.

: Manta Riders gains flying until end of turn.

Sacrifice a Food: Target creature blocks Maraleaf Rider this turn if able.

: Regenerate Marang River Skeleton.

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

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.)

(Start the game with this conspiracy face up in the command zone. Before the game, secretly choose one of the following. During your end step, if you meet the condition, you may reveal your choice and turn this card face down. When you do, collect the reward.)

• You've cast three or more spells this turn.

• An opponent lost 6 or more life this turn.

• There are nine or more cards in your graveyard.

Reward — Draw a card.

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

Whenever Mardu Strike Leader attacks, create a 2/1 black Warrior creature token.

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.)

Whenever a creature an opponent controls dies, exile it with a hit counter on it.

Assassins, Mercenaries, and Rogues you control have deathtouch and "Whenever this creature deals combat damage to a player, you may remove a hit counter from a card that player owns in exile. If you do, draw a card and create two Treasure tokens."

When Marina Vendrell's Grimoire enters, if you cast it, draw five cards.

You have no maximum hand size and don't lose the game for having 0 or less life.

Whenever you gain life, draw that many cards.

Whenever you lose life, discard that many cards. Then if you have no cards in hand, you lose the game.

Fabricate 3 (When this creature enters, 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.

Your opponents can't cast spells during combat.

Whenever a creature you control deals combat damage to a player, goad each creature that player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

Whenever Marit Lage's Slumber or another snow permanent you control enters, scry 1.

At the beginning of your upkeep, if you control ten or more snow permanents, sacrifice Marit Lage's Slumber. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Choose one or both —

• Creatures you control get +1/+0 until end of turn.

• Target Vampire you control deals damage equal to its power to another target creature.

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

All creatures have haste.

, Sacrifice another creature: Add . Spend this mana only to cast Vampire, Cleric, and/or Demon spells.

Other Merfolk creatures you control get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Servos and Thopters you control get +1/+1.

: Create a 1/1 colorless Servo artifact creature token.

Whenever Matsu-Tribe Birdstalker deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

: Matsu-Tribe Birdstalker gains reach until end of turn. (It can block creatures with flying.)

: Matsu-Tribe Sniper deals 1 damage to target creature with flying.

Whenever Matsu-Tribe Sniper deals damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

At the beginning of your upkeep, put a +1/+1 counter on each creature you control if you control a creature with power 5 or greater. Then you gain 10 life if you control a creature with power 10 or greater. Then you win the game if you control a creature with power 20 or greater.

Meandering River enters tapped.

: Add or .

Trample

When Megatherium enters, sacrifice it unless you pay for each card in your hand.

Vigilance

Meldweb Strider enters with an oil counter on it.

Remove an oil counter from Meldweb Strider: It becomes an artifact creature until end of turn.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Memorial to Folly enters tapped.

: Add .

, , Sacrifice Memorial to Folly: Return target creature card from your graveyard to your hand.

Memorial to Glory enters tapped.

: Add .

, , Sacrifice Memorial to Glory: Create two 1/1 white Soldier creature tokens.

Memorial to War enters tapped.

: Add .

, , Sacrifice Memorial to War: Destroy target land.

: Add one mana of any one color. Spend this mana only to cast a creature spell.

Whenever you cast a creature spell that doesn't share a creature type with a creature card in your library, draw a card.

Other green creatures you control get +1/+1.

, : Draw two cards.

, , Discard a card: Mercurial Chemister deals damage to target creature equal to the discarded card's mana value.

Flying

Whenever Mercurial Kite deals combat damage to a creature, tap that creature. That creature doesn't untap during its controller's next untap step.

Mercurial Spelldancer can't be blocked.

Whenever you cast a noncreature spell, put an oil counter on Mercurial Spelldancer.

Whenever Mercurial Spelldancer deals combat damage to a player, you may remove two oil counters from it. If you do, when you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

, : Target player mills two cards.

Flash

When Merfolk Trickster enters, tap target creature an opponent controls. It loses all abilities until end of turn.

Whenever one or more Halflings you control attack a player, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Merieke Ri Berit doesn't untap during your untap step.

: Gain control of target creature for as long as you control Merieke Ri Berit. When Merieke Ri Berit leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated.

When Mesmeric Fiend enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card.

When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

, Discard a card: Draw a card.

Enchant creature

When Mesmerizing Dose enters, tap enchanted creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Enchanted creature doesn't untap during its controller's untap step.

When Meteorite enters, it deals 2 damage to any target.

: Add one mana of any color.

(Transforms from Path of Mettle.)

: Add one mana of any color.

, : Metzali, Tower of Triumph deals 2 damage to each opponent.

, : Choose a creature at random that attacked this turn. Destroy that creature.

At the beginning of combat on your turn, if you control each creature on the battlefield with the greatest power, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)