Creatures you control can't be blocked except by legendary creatures.

Whenever one or more creatures you control deal combat damage to a player, venture into the dungeon. (Enter the first room or advance to the next room.)

When Midnight Scavengers enters, you may return target creature card with mana value 3 or less from your graveyard to your hand.

(Melds with Graf Rats.)

All Sliver creatures get +2/+2.

Migloz, Maze Crusher enters with five oil counters on it.

, Remove an oil counter from Migloz: It gains vigilance and menace until end of turn.

, Remove two oil counters from Migloz: It gets +2/+2 until end of turn.

, Remove three oil counters from Migloz: Destroy target artifact or enchantment.

Flying, ward

Whenever another nontoken Dragon you control enters, create a token that's a copy of it, except the token isn't legendary.

Mikaeus, the Lunarch enters with X +1/+1 counters on it.

: Put a +1/+1 counter on Mikaeus.

, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Whenever an opponent attacks one or more planeswalkers you control, put a loyalty counter on each planeswalker you control.

Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

Flying, lifelink

When Militant Angel enters, create a number of 2/2 white Knight creature tokens with vigilance equal to the number of opponents you attacked this turn.

Vigilance

: Prevent the next 1 damage that would be dealt to any target this turn.

Militia Rallier can't attack alone.

Whenever Militia Rallier attacks, untap target creature.

This spell costs less to cast for each Spirit you control.

Flying

Whenever Millicent, Restless Revenant or another nontoken Spirit you control dies or deals combat damage to a player, create a 1/1 white Spirit creature token with flying.

You may play an additional land on each of your turns.

, Return a land you control to its owner's hand: Target creature gains trample until end of turn.

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

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.)

When Mind Maggots enters, discard any number of creature cards. For each card discarded this way, put two +1/+1 counters on Mind Maggots.

Defender (This creature can't attack.)

Flying

Whenever Mindbender Spores blocks a creature, put four fungus counters on that creature. The creature gains "This creature doesn't untap during your untap step if it has a fungus counter on it" and "At the beginning of your upkeep, remove a fungus counter from this creature."

When Mindclaw Shaman enters, target opponent reveals their hand. You may cast an instant or sorcery spell from among those cards without paying its mana cost.

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

Trample

Whenever Mindleech Mass deals combat damage to a player, you may look at that player's hand. If you do, you may cast a spell from among those cards without paying its mana cost.

Mindless Automaton enters with two +1/+1 counters on it.

, Discard a card: Put a +1/+1 counter on Mindless Automaton.

Remove two +1/+1 counters from Mindless Automaton: Draw 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

Whenever Mindscour Dragon deals combat damage to an opponent, target player mills four cards.

When Mindslicer dies, each player discards their hand.

Whenever Mindstab Thrull attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

All Slivers have ", Sacrifice this permanent: Target player discards a card at random. Activate only as a sorcery."

Flying, trample

When Mindwrack Demon enters, mill four cards.

Delirium — At the beginning of your upkeep, you lose 4 life unless there are four or more card types among cards in your graveyard.

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.

: Miner's Bane gets +1/+0 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Reach

When Mineshaft Spider enters, you may mill two cards. (You may put the top two cards of your library into your graveyard.)

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.

Menace

Pack tactics — Whenever Minion of the Mighty attacks, if you attacked with creatures with total power 6 or greater this combat, you may put a Dragon creature card from your hand onto the battlefield tapped and attacking.

( can be paid with either or .)

: Tap target creature.

Exploit (When this creature enters, you may sacrifice a creature.)

When Minister of Pain exploits a creature, creatures your opponents control get -1/-1 until end of turn.

Whenever you draw your second card each turn, create a 1/1 blue Illusion creature token with "This creature gets +1/+0 for each other Illusion you control."

Whenever an Illusion you control dies, you may put a permanent card with mana value less than or equal to that creature's power from your hand onto the battlefield.

First strike, haste

When Minotaur Explorer enters, sacrifice it unless you discard a card at random.

Haste

When Minotaur Skullcleaver enters, it gets +2/+0 until end of turn.

Haste

Minotaur Tactician gets +1/+1 as long as you control a white creature.

Minotaur Tactician gets +1/+1 as long as you control a blue creature.

When Minsc, Beloved Ranger enters, create Boo, a legendary 1/1 red Hamster creature token with trample and haste.

: Until end of turn, target creature you control has base power and toughness X/X and becomes a Giant in addition to its other types. Activate only as a sorcery.

Minthara has ward , where X is the number of experience counters you have.

At the beginning of your end step, if a permanent you controlled left the battlefield this turn, you get an experience counter.

Creatures you control get +1/+0 for each experience counter you have.

: Destroy target Aura attached to a creature you control.

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.)

, Sacrifice a Swamp: Put a +1/+1 counter on Mire Shade. Activate only as a sorcery.

Vigilance

When Mirelurk Queen enters, target player gets two rad counters.

Whenever one or more nonland cards are milled, draw a card, then put a +1/+1 counter on Mirelurk Queen. This ability triggers only once each turn.

Flying

Whenever Mirko Vosk, Mind Drinker deals combat damage to a player, that player reveals cards from the top of their library until they reveal four land cards, then puts those cards into their graveyard.

Flying

Whenever you create or sacrifice a token, each opponent loses 1 life.

Trample

Whenever Mirkwood Elk enters or attacks, return target Elf card from your graveyard to your hand. You gain life equal to that card's power.

Whenever a player attacks you, target attacking creature gets -2/-0 until end of turn.

Whenever a player attacks, if they aren't attacking you, that player chooses an attacking creature. It gets +2/+0 until end of turn.