, : Target creature with power X or less can't be blocked this turn.

Minas Morgul, Dark Fortress enters tapped.

: Add .

, : Put a shadow counter on target creature. For as long as that creature has a shadow counter on it, it's a Wraith in addition to its other types. (A creature with shadow can block or be blocked by only creatures with shadow.)

Threshold — As long as seven or more cards are in your graveyard, Mind Drill Assailant gets +3/+0.

: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

All Slivers have ", Sacrifice this permanent: Each player discards a card."

Devoid (This card has no color.)

Mindmelter can't be blocked.

: Target opponent exiles a card from their hand. Activate only as a sorcery. ( represents colorless mana.)

Flying

: Target player mills a card. Mindshrieker gets +X/+X until end of turn, where X is the milled card's mana value.

Mindwarper enters with three +1/+1 counters on it.

, Remove a +1/+1 counter from Mindwarper: Target player discards a card. Activate only as a sorcery.

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

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

: You may put a blue or red creature card from your hand onto the battlefield.

, : Put a mine counter on target land.

Whenever a land with a mine counter on it becomes tapped, destroy it.

When Mine Layer leaves the battlefield, remove all mine counters from all lands.

: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead.

Mines of Moria enters tapped unless you control a legendary creature.

: Add .

, , Exile three cards from your graveyard: Create two Treasure tokens.

Protection from black

At the beginning of your upkeep, Minion of Leshrac deals 5 damage to you unless you sacrifice a creature other than Minion of Leshrac. If Minion of Leshrac deals damage to you this way, tap it.

: Destroy target creature or land.

( can be paid with either or .)

: Tap target creature.

: Minotaur Illusionist gains shroud until end of turn. (It can't be the target of spells or abilities.)

, Sacrifice Minotaur Illusionist: It deals damage equal to its power to target creature.

When Minsc & Boo, Timeless Heroes enters and at the beginning of your upkeep, you may create Boo, a legendary 1/1 red Hamster creature token with trample and haste.

+1: Put three +1/+1 counters on up to one target creature with trample or haste.

−2: Sacrifice a creature. When you do, Minsc & Boo, Timeless Heroes deals X damage to any target, where X is that creature's power. If the sacrificed creature was a Hamster, draw X cards.

Minsc & Boo, Timeless Heroes can be your commander.

When Mintstrosity dies, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Mirage Mesa enters tapped. As it enters, choose a color.

: Add one mana of the chosen color.

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

: Regenerate Mire Boa. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

: Add .

, , Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

For Mirrodin (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)

Equipped creature gets +2/+1 and has vigilance.

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

: Add .

: Put a charge counter on Mirrodin's Core.

, Remove a charge counter from Mirrodin's Core: Add one mana of any color.

Mirror Mirror enters tapped.

, , Sacrifice Mirror Mirror: Choose target player. At the beginning of the next end step, exchange life totals with that player, exchange control of all permanents you and that player control, and exchange cards in your hands, cards in your libraries, and cards in your graveyards.

, : Scry 1, then draw a card. This ability costs less to activate for each legendary creature you control.

: Copy target instant or sorcery spell that targets you. You may choose new targets for the copy.

, Sacrifice Mirror Universe: Exchange life totals with target opponent. Activate only during your upkeep.

Reflect (As this enters the battlefield, each opponent may pay . When they do, they create a token copy of this except it lacks this ability.)

, Exile CARDNAME: Add three mana of any one color.

Mirrorpool enters tapped.

: Add .

, , Sacrifice Mirrorpool: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

, , Sacrifice Mirrorpool: Create a token that's a copy of target creature you control.

: The next time damage would be dealt to Mirrorwood Treefolk this turn, that damage is dealt to any target instead.

Flying

Pay 1 life: Regenerate Mischievous Poltergeist.

If a creature an opponent controls would die, exile it instead.

: Misery's Shadow gets +1/+1 until end of turn.

Permanents you control have "Ward—Sacrifice a permanent."

Each artifact card in your graveyard has unearth . (: Return the card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

: Add .

: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.

: Target Assembly-Worker creature gets +1/+1 until end of turn.

, Sacrifice Mishra's Groundbreaker: Target land becomes a 3/3 artifact creature that's still a land. <I>(This effect lasts indefinitely.)</I>

Trample

Mishra's Juggernaut attacks each combat if able.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

: Add . Spend this mana only to cast artifact spells.

Flying

Other Merfolk you control get +1/+0 and have flying.

Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Mistblade Shinobi deals combat damage to a player, you may return target creature that player controls to its owner's hand.

Whenever you cast an Aura or Equipment spell, put a +1/+1 counter on Mister Gutsy.

When Mister Gutsy dies, create X Junk tokens, where X is the number of +1/+1 counters on it. (They're artifacts with ", Sacrifice this artifact: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")

Flying

: Mistform Dreamer becomes the creature type of your choice until end of turn.

: Choose a creature type other than Wall. Target creature becomes that type until end of turn.

Flying

: Mistform Shrieker becomes the creature type of your choice until end of turn.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

All Slivers have ": This permanent becomes the creature type of your choice in addition to its other types until end of turn."

Flying

: Mistform Wakecaster becomes the creature type of your choice until end of turn.

, : Choose a creature type. Each creature you control becomes that type until end of turn.

Creature spells you cast that share a creature type with Mistform Warchief cost less to cast.

: Mistform Warchief becomes the creature type of your choice until end of turn.

: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Mistvault Bridge enters tapped.

Indestructible

: Add or .

You may pay and return a basic land you control to its owner's hand rather than pay this spell's mana cost.

Mistvein Borderpost enters tapped.

: Add or .

, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

Trample

Whenever you cast a noncreature spell, Mizzium Tank becomes an artifact creature and gets +1/+1 until end of turn.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)