Enchant creature

When Mesmerizing Dose enters the battlefield, 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.

Flying

Council's dilemma — When Messenger Jays enters the battlefield, starting with you, each player votes for feather or quill. Put a +1/+1 counter on Messenger Jays for each feather vote and draw a card for each quill vote. For each card drawn this way, discard a card.

Cards in the winning deck(s) of the latest Mythic Championship cost more to cast.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Counter target spell unless its controller pays .

When Metalspinner's Puzzleknot enters the battlefield, you draw a card and you lose 1 life.

, Sacrifice Metalspinner's Puzzleknot: You draw a card and you lose 1 life.

Metathran Soldier can't be blocked.

Meteor Shower deals X plus 1 damage divided as you choose among any number of targets.

Flying

: Metropolis Sprite gets +1/-1 until end of turn.

Flying, deathtouch

Enchant creature

Enchanted creature has ": This creature gets +1/+1 until end of turn."

Whenever another creature enters the battlefield, untap Midnight Guard.

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

(Melds with Graf Rats.)

Put two +1/+1 counters on target creature.

Delirium — Put three +1/+1 counters on that creature instead if there are four or more card types among cards in your graveyard.

Kicker (You may pay an additional as you cast this spell.)

Target creature gets +3/+3 until end of turn. If this spell was kicked, that creature gets +5/+5 until end of turn instead.

Target creature gets +1/+1 until end of turn for each creature you control.

Attacking creatures get +1/+0.

Target creature gets +2/+2 and gains flying until end of turn.

Militant Inquisitor gets +1/+0 for each Equipment you control.

Flash

Enchant creature

When Military Discipline enters the battlefield, enchanted creature gains first strike until end of turn.

Enchanted creature gets +1/+0.

Militia Rallier can't attack alone.

Whenever Militia Rallier attacks, untap target creature.

, Sacrifice Mimic: Add one mana of any color.

: Mimic becomes a Shapeshifter artifact creature with base power and toughness 3/3 until end of turn.

Defender

Your maximum hand size is increased by one.

Target player discards X cards, where X is one plus the number of cards named Mind Burst in all graveyards.

As an additional cost to cast this spell, sacrifice a creature.

Target player reveals their hand and discards all cards of each of the sacrificed creature's colors.

Target opponent discards a card at random.

Devoid (This card has no color.)

When Mind Raker enters the battlefield, you may put a card an opponent owns from exile into that player's graveyard. If you do, each opponent discards a card.

Target player discards two cards.

: Add .

, , Sacrifice Mind Stone: Draw a card.

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

Mindless Null can't block unless you control a Vampire.

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

Flying

At the beginning of combat on your turn, each player mills three cards.

If it's your turn, you may sacrifice a Mountain rather than pay this spell's mana cost.

Mine Collapse deals 5 damage to target creature or planeswalker.

Trample

When Mine Raider enters the battlefield, if you control another outlaw, create a Treasure token. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws. A Treasure token is an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Flying, vigilance

When Miner's Guidewing dies, target creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Enchant nonland permanent

Enchanted permanent is a Treasure artifact with ", Sacrifice this artifact: Add one mana of any color," and it loses all other abilities. (If it was a creature, it's no longer a creature.)

( can be paid with either or .)

: Tap target creature.

Haste

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

Mirage Mesa enters the battlefield 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, instead tap it, remove it from combat, and heal all damage on it.)

Deathtouch

When Mire Triton enters the battlefield, mill two cards and you gain 2 life. (To mill a card, put the top card of your library into your graveyard.)

Target opponent discards two cards.

Awaken 3— (If you cast this spell for , also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Flying

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

Flash

When Mirran Banesplitter enters the battlefield, attach it to target creature you control.

Equipped creature gets +2/+0.

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

Target creature gets +2/+2 until end of turn.

Metalcraft — That creature gets +4/+4 until end of turn instead if you control three or more artifacts.

Destroy target creature that was dealt damage this turn.

Draw a card.