At the beginning of your upkeep, return another creature you control to its owner's hand. If you do, put a +1/+1 counter on Mistbreath Elder. Otherwise, you may return Mistbreath Elder to its owner's hand.

Mist-Cloaked Herald can't be blocked.

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

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

When Mistfire Weaver is turned face up, target creature you control gains hexproof until end of turn.

Whenever Mistford River Turtle attacks, another target attacking non-Human creature can't be blocked this turn.

Enchant creature

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

Flying

: Mistform Seaswift 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.)

Flying

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

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

: Mistform Stalker gets +2/+2 and gains flying 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.

Misthios's Fury deals 3 damage to target creature. If you control an Equipment, Misthios's Fury also deals 2 damage to that creature's controller.

Flying, vigilance

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

Whenever Mistmeadow Vanisher becomes tapped, exile up to one target nonland, nontoken permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Flying

When Mistmoon Griffin dies, exile Mistmoon Griffin, then return the top creature card of your graveyard to the battlefield.

Flying

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Return target nonland permanent and each other nonland permanent with the same mana value as that permanent to their owners' hands.

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 .

Flying

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

When Mistway Spy is turned face up, until end of turn, whenever a creature you control deals combat damage to a player, investigate.

When you unlock this door, create an X/X blue Spirit creature token with flying, where X is the number of unlocked doors among Rooms you control.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

First strike

During your turn, creature tokens you control get +1/+0 and have first strike.

: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block." (Players dealt combat damage by it also get a poison counter. can be paid with either or 2 life.)

Look at the top seven cards of your library. You may put one of those cards onto the battlefield if it has the same name as a permanent. Put the rest on the bottom of your library in any order.

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

When Mizzium Meddler enters, you may change a target of target spell or ability to Mizzium Meddler.

Target creature you control gets +0/+1 and gains hexproof until end of turn.

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

: Mizzium Transreliquat becomes a copy of target artifact until end of turn.

: Mizzium Transreliquat becomes a copy of target artifact, except it has this ability.

Flying

Whenever you cast a spell from anywhere other than your hand, you may pay . If you do, copy that spell and you may choose new targets for the copy. If the copy is a permanent spell, it gains haste and "At the beginning of your end step, sacrifice this permanent." (A copy of a permanent spell becomes a token.)

When Mjölnir enters, attach it to target legendary creature you control.

Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls.

Equip

Exile target instant or sorcery card from a graveyard. Copy that card three times. You may cast the copies without paying their mana costs. Exile Mnemonic Deluge.

All Slivers have ", Sacrifice this permanent: Draw a card."

Defender

When Mnemonic Wall enters, you may return target instant or sorcery card from your graveyard to your hand.

Defender

Cycling (, Discard this card: Draw a card.)

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

Secret council — Each player secretly votes for another player, then those votes are revealed. For each vote an opponent received, Mob Verdict deals 2 damage to that player and each creature that player controls. For each vote you received, draw a card.

Defender (This creature can't attack.)

: Mobile Fort gets +3/-1 until end of turn and can attack this turn as though it didn't have defender. Activate only once each turn.

Mobile Homestead has haste as long as you control a Mount.

Whenever Mobile Homestead attacks, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped.

Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Untap all creatures you control.

Flying

Whenever Mobilizer Mech becomes crewed, up to one other target Vehicle you control becomes an artifact creature until end of turn.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Flying

Instant and sorcery spells you cast cost less to cast.

Whenever players finish voting, you and each opponent who voted for a choice you voted for may scry 2.

: Add one mana of any color.

Exchange control of two target creatures controlled by different players. If you control neither creature, draw three cards.

: You choose target creature an opponent controls, and that opponent chooses target creature. Flip a coin. If you win the flip, destroy the creature you chose. If you lose the flip, destroy the creature your opponent chose.

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Destroy all creatures target player controls. For each creature that died this way, that player creates two 1/1 red Goblin creature tokens.

Whenever Mogg Maniac is dealt damage, it deals that much damage to target opponent or planeswalker.

Indestructible

As long as your devotion to black and red is less than seven, Mogis isn't a creature.

At the beginning of each opponent's upkeep, Mogis deals 2 damage to that player unless they sacrifice a creature of their choice.

When Mogis's Marauder enters, up to X target creatures each gain intimidate and haste until end of turn, where X is your devotion to black. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it. Each in the mana costs of permanents you control counts toward your devotion to black.)

Flying

Whenever you cast a historic spell, return target nonland permanent card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. (Artifacts, legendaries, and Sagas are historic.)

Menace

Whenever Moira, Urborg Haunt deals combat damage to a player, return to the battlefield target creature card in your graveyard that was put there from the battlefield this turn.

Trample, lifelink