If Mossbridge Troll would be destroyed, regenerate it.

Tap any number of untapped creatures you control other than Mossbridge Troll with total power 10 or greater: Mossbridge Troll gets +20/+20 until end of turn.

Whenever Mossdog becomes the target of a spell or ability an opponent controls, put a +1/+1 counter on Mossdog.

, : Add .

: Target creature with power 5 or greater gains trample until end of turn.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Mosswort Bridge enters the battlefield tapped.

: Add .

, : You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

Changeling (This card is every creature type.)

Tap an untapped creature you control: Mothdust Changeling gains flying until end of turn.

: Target creature you control gains protection from the color of your choice until end of turn.

Enchant creature

When Motion Sickness enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

Whenever you visit an Attraction, you may attach Motion Sickness to target tapped creature.

Red legendary creatures you control have "bands with other legendary creatures." (Any legendary creatures can attack in a band as long as at least one has "bands with other legendary creatures." Bands are blocked as a group. If at least two legendary creatures you control, one of which has "bands with other legendary creatures," are blocking or being blocked by the same creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Imprint — When Mourner's Shield enters the battlefield, you may exile target card from a graveyard.

, : Prevent all damage that would be dealt this turn by a source of your choice that shares a color with the exiled card.

: Add .

: Add one mana of any color.

Whenever you roll a 4 or higher, create a 3/3 colorless Robot artifact creature token. If you rolled 6 or higher, instead create that token and a Treasure token.

, : Roll a six-sided die plus an additional six-sided die for each mana from Treasures spent to activate this ability.

+2: Until your next turn, up to one target creature gets -2/-0 and loses flying.

−3: Create a 4/4 blue Elemental Bird creature token with flying.

−8: You get an emblem with "Islands you control have ‘: Draw a card.'"

Mudbrawler Raiders can't be blocked by blue creatures.

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

Lifelink

Play with the top card of your library revealed.

As long as the top card of your library is a creature card, Mul Daya Channelers gets +3/+3.

As long as the top card of your library is a land card, Mul Daya Channelers has ": Add two mana of any one color."

Reach, trample

Multani, Yavimaya's Avatar gets +1/+1 for each land you control and each land card in your graveyard.

, Return two lands you control to their owner's hand: Return Multani from your graveyard to your hand.

Destroy all enchantments. You gain 2 life for each enchantment destroyed this way.

Whenever a spell you've cast is countered, draw a card.

Haste

Rally — Whenever Munda, Ambush Leader or another Ally enters the battlefield under your control, you may look at the top four cards of your library. If you do, reveal any number of Ally cards from among them, then put those cards on top of your library in any order and the rest on the bottom in any order.

Flash

When Munitions Expert enters the battlefield, you may have it deal damage to target creature or planeswalker equal to the number of Goblins you control.

Trample

Murasa Behemoth gets +3/+3 as long as there is a land card in your graveyard.

Whenever Murasa Pyromancer or another Ally enters the battlefield under your control, you may have Murasa Pyromancer deal damage to target creature equal to the number of Allies you control.

Vigilance

: You may put a basic land card from your hand onto the battlefield.

: Return target basic land you control to its owner's hand.

Enchant creature you control

When enchanted creature dies, create X 1/1 white Soldier creature tokens, where X is its power.

Equipped creature gets +2/+2.

Equip—Discard a card.

Destroy target tapped creature.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When Murderous Redcap enters the battlefield, it deals damage equal to its power to any target.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Destroy target nonblack creature. It can't be regenerated. You gain control of all Equipment that were attached to it. (This effect lasts indefinitely.)

Devoid (This card has no color.)

When Murk Strider enters the battlefield, you may put a card an opponent owns from exile into that player's graveyard. If you do, return target creature to its owner's hand.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Reveal the top three cards of your library. An opponent chooses one of them. Put that card into your graveyard and the rest into your hand.

All Sliver creatures get +1/+1.

, : Target player exiles a card from their hand. Activate only as a sorcery.

: Choose a card exiled with Muse Vessel. You may play that card this turn.

When Museum Nightwatch dies, create a 2/2 white and blue Detective creature token.

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.)

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.)

: Put a music counter on target creature. If it doesn't have "At the beginning of your upkeep, destroy this creature unless you pay for each music counter on it," it gains that ability.

Flying, vigilance

Mutagen Connoisseur gets +1/+0 for each transformed permanent you control.

Target creature you control with a +1/+1 counter on it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

This spell has flash as long as you control a permanent with flash.

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

Destroy target creature.

, : Look at the top X cards of your library, where X is the highest mana value among artifacts you control. You may put an artifact card from among them onto the battlefield. Put the rest on the bottom of your library in any order.

When Mwonvuli Beast Tracker enters the battlefield, search your library for a creature card with deathtouch, hexproof, reach, or trample and reveal it. Shuffle and put that card on top.

Whenever Mycoid Shepherd or another creature you control with power 5 or greater dies, you may gain 5 life.

Infesting Spores — When Myconid Spore Tender enters the battlefield, destroy up to one target artifact or enchantment.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Artifact creature spells you cast have affinity for artifacts. (They cost less to cast for each artifact you control.)

When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Myojin of Cryptic Dreams enters the battlefield with an indestructible counter on it if you cast it from your hand.

Remove an indestructible counter from Myojin of Cryptic Dreams: Copy target permanent spell you control three times. (The copies become tokens.)

Myojin of Night's Reach enters the battlefield with a divinity counter on it if you cast it from your hand.

Myojin of Night's Reach has indestructible as long as it has a divinity counter on it.

Remove a divinity counter from Myojin of Night's Reach: Each opponent discards their hand.

Myojin of Seeing Winds enters the battlefield with a divinity counter on it if you cast it from your hand.

Myojin of Seeing Winds has indestructible as long as it has a divinity counter on it.

Remove a divinity counter from Myojin of Seeing Winds: Draw a card for each permanent you control.

When Myr Custodian enters the battlefield, scry 2. Then each opponent may scry 1. (To scry X, that player looks at the top X cards of their library, then put any number of them on the bottom and the rest on top in any order.)

: Target land becomes an artifact in addition to its other types until end of turn.