Regenerate target creature.

Target player discards two cards and loses 2 life.

Draw three cards.

Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Mill two cards.

Draw a card.

Flying

When Mentor of Evos Isle enters the battlefield, choose a creature card in your hand. It perpetually gains flying.

When you cast this spell, copy it if you control a planeswalker, Cleric, Druid, Shaman, Warlock, or Wizard.

Scry 1, then draw a card.

Mephitic Ooze gets +1/+0 for each artifact you control.

Whenever Mephitic Ooze deals combat damage to a creature, destroy that creature. The creature can't be regenerated.

Mephit's Enthusiasm deals 4 damage to target creature or planeswalker. If excess damage was dealt this way, note that excess damage, then you get a boon with "When you cast your next creature spell, it perpetually gets +X/+0, where X is the noted number."

, : Put a winch counter on Mercadian Lift.

, Remove X winch counters from Mercadian Lift: You may put a creature card with mana value X from your hand onto the battlefield.

When Merchant of Secrets enters the battlefield, draw a card.

Flying

Whenever a nontoken creature you control dies, investigate.

Clues you control have exalted. (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

, , Tap X untapped artifacts you control: Look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Choose one —

• Exile all artifacts.

• Exile all creatures.

• Exile all enchantments.

• Exile all planeswalkers.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Merciless Predator.

Flying

Whenever you cast an instant or sorcery spell, Mercurial Geists gets +3/+0 until end of turn.

You may have Mercurial Pretender enter the battlefield as a copy of a creature you control, except it has ": Return this creature to its owner's hand."

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Each creature you control with a +1/+1 counter on it has deathtouch.

: Merfolk Coralsmith gets +1/-1 until end of turn.

When Merfolk Coralsmith dies, scry 2.

, : Target player mills two cards.

Flash (You may cast this spell any time you could cast an instant.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

: Tap target creature without flying.

Flying

Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

When Merfolk Traders enters the battlefield, draw a card, then discard a card.

Tap an untapped nontoken artifact you control: Add .

Tap two untapped nontoken artifacts you control: Exile the top card of your library. You may play it this turn.

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.

: Target creature gains flying until end of turn.

Whenever you cast a blue spell, you may untap Merrow Levitator.

Whenever you cast an enchantment spell, you may draw 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.

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

Gain control of target artifact until end of turn. Untap that artifact. It gains haste until end of turn.

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 .

, : Regenerate target artifact.

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.

: Reveal any number of artifact cards in your hand. Add for each card revealed this way.

Spree (Choose one or more additional costs.)

+ — Until end of turn, target creature becomes a white Rabbit with base power and toughness 0/1.

+ — Target player draws two cards.

Put target permanent an opponent controls on top of its owner's library. That opponent may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Whenever another nontoken creature enters the battlefield under your control, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Metathran Elite can't be blocked as long as it's enchanted.

Flying

Metathran Transport can't be blocked by blue creatures.

: Target creature becomes blue until end of turn.

Meteor Blast deals 4 damage to each of X targets.

When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.

, Discard two cards at random: Meteor Storm deals 4 damage to any target.

Equipped creature gets +4/+0 and has trample.

Equip

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

(: Add or .)

Meticulous Archive enters the battlefield tapped.

When Meticulous Archive enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

When a spell or ability an opponent controls causes you to discard Metrognome, create four 1/1 colorless Gnome artifact creature tokens.

, : Create a 1/1 colorless Gnome artifact creature token.

Flying, vigilance

You have hexproof.

Whenever Metropolis Reformer is dealt damage, you gain that much life.

(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.

Whenever a source an opponent controls deals damage to you, that player sacrifices a permanent.

When Michonne enters the battlefield, create two Walker tokens.

As long as Michonne is equipped, she must be blocked if able.

Whenever Michonne and at least two Zombies attack, she gains indestructible until end of turn.