When Mairsil, the Pretender enters, you may exile an artifact or creature card from your hand or graveyard and put a cage counter on it.

Mairsil, the Pretender has all activated abilities of all cards you own in exile with cage counters on them. You may activate each of those abilities only once each turn.

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

Whenever Majestic Heliopterus attacks, another target Dinosaur you control gains flying until end of turn.

Majestic Myriarch's power and toughness are each equal to twice the number of creatures you control.

At the beginning of each combat, Majestic Myriarch gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Flash

When this enchantment enters, you may put a name sticker on it.

Whenever you put a sticker on this enchantment, tap up to X target creatures, where X is the number of u's in name stickers on this enchantment.

Return two cards at random from your graveyard to your hand.

Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell and you may choose a new target for the copy.)

Counter target spell unless its controller pays .

Creatures your opponents control get -1/-1 until end of turn.

Destroy target artifact, enchantment, or creature with power 4 or greater.

Battalion — Whenever Makeshift Battalion and at least two other creatures attack, put a +1/+1 counter on Makeshift Battalion.

Return target creature card from your graveyard to the battlefield with a mannequin counter on it. For as long as that creature has a mannequin counter on it, it has "When this creature becomes the target of a spell or ability, sacrifice it."

, Sacrifice an artifact or creature: Makeshift Munitions deals 1 damage to any target.

Flying

Landfall — Whenever a land you control enters, tap target creature an opponent controls.

Defender

Whenever Makindi Shieldmate or another Ally you control enters, you may put a +1/+1 counter on Makindi Shieldmate.

Creatures you control get +2/+2 until end of turn.

: Malachite Golem gains trample until end of turn.

When this creature transforms into Malady Invoker, target creature an opponent controls gets -0/-X until end of turn, where X is Malady Invoker's power.

Flying, protection from white

When Malakir Bloodwitch enters, each opponent loses life equal to the number of Vampires you control. You gain life equal to the life lost this way.

Flying, deathtouch

Whenever you gain life, Malakir Familiar gets +1/+1 until end of turn.

Choose target creature. You lose 2 life. Until end of turn, that creature gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Choose target creature you control and target creature you don't control. If the creature you control entered this turn, put a +1/+1 counter on it. Then those creatures fight each other.

Flash

When Malamet Scythe enters, attach it to target creature you control.

Equipped creature gets +2/+2.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

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

When Malcator, Purity Overseer enters, create a 3/3 colorless Phyrexian Golem artifact creature token.

At the beginning of your end step, if three or more artifacts entered the battlefield under your control this turn, create a 3/3 colorless Phyrexian Golem artifact creature token.

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.

Flying, haste

Whenever you cast your second spell each turn, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

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

, Sacrifice Malevolent Hermit: Counter target noncreature spell unless its controller pays .

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Reveal the top four cards of your library. You may put a permanent card from among them into your hand. Put the rest into your graveyard. Create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add ."

Flying

When Malevolent Witchkite enters, sacrifice any number of artifacts, enchantments, and/or tokens, then draw that many cards.

Enchant artifact or creature

When Malfunction enters, tap enchanted permanent.

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

Tap X target artifacts, creatures, and/or lands. You lose X life.

All creatures get -2/-2 until end of turn. If a creature an opponent controls would die this turn, exile it instead.

Flying

Malicious Invader gets +2/+0 as long as an opponent controls a Human.

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.)

At the beginning of your upkeep, put a growth counter on Malignant Growth.

At the beginning of each opponent's draw step, that player draws an additional card for each growth counter on Malignant Growth, then Malignant Growth deals damage to the player equal to the number of cards they drew this way.

Flash

Flying

You may have Malleable Impostor enter as a copy of a creature an opponent controls, except it's a Faerie Shapeshifter in addition to its other types and it has flying.

Enchant creature

Enchanted creature loses flying.

Whenever enchanted creature blocks or becomes blocked by a creature, the other creature gains first strike until end of turn.

Enchant creature

Enchanted creature gets +3/+3 and has vigilance.

Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

If a player would add mana, instead all players add that mana.

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Whenever you cast a multicolored spell, Mana Cannons deals X damage to any target, where X is the number of colors that spell is.

You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.

: Add .

Counter target spell. At the beginning of your next main phase, add an amount of equal to that spell's mana value.

Add for each nonland permanent with art by the artist of your choice.

When Mana Geode enters, scry 1.

: Add one mana of any color.

Counter target spell unless its controller pays .

Instant and enchantment spells you cast cost less to cast.

: Add .

, : Add one mana of any color.