Sliver creatures you control get +3/+3.

Sacrifice an artifact: Megatog gets +3/+3 and gains trample until end of turn.

Living metal (As long as it's your turn, this Vehicle is also a creature.)

Whenever Megatron attacks, you may sacrifice another artifact. When you do, Megatron deals damage equal to the sacrificed artifact's mana value to target creature. If excess damage would be dealt to that creature this way, instead that damage is dealt to that creature's controller and you convert Megatron.

Vigilance, trample

Whenever Meglonoth blocks a creature, Meglonoth deals damage to that creature's controller equal to Meglonoth's power.

All creatures get -X/-0, where X is the number of cards in your hand.

When Meldweb Curator enters the battlefield, put up to one target instant or sorcery card from your graveyard on top of your library.

Cast this spell only during your turn and only during combat before blockers are declared.

You choose which creatures block this combat and how those creatures block.

Whenever a creature attacks and isn't blocked this combat, untap it and remove it from combat.

Melek, Reforged Researcher's power and toughness are each equal to twice the number of instant and sorcery cards in your graveyard.

The first instant or sorcery spell you cast each turn costs less to cast.

Heroic — Whenever you cast a spell that targets Meletis Astronomer, look at the top three cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

You can't get poison counters.

Creatures you control can't have -1/-1 counters put on them.

Creatures your opponents control lose infect.

Melira's Keepers can't have counters put on it.

Destroy target land. Melt Terrain deals 2 damage to that land's controller.

All lands are no longer snow.

Memorial to Genius enters the battlefield tapped.

: Add .

, , Sacrifice Memorial to Genius: Draw two cards.

Memorial to Unity enters the battlefield tapped.

: Add .

, , Sacrifice Memorial to Unity: Look at the top five cards of your library. You may reveal a creature card from among them and put it into your hand. Then put the rest on the bottom of your library in a random order.

Choose a nonland card name. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles.

Draw a card.

Bank (If you cast CARDNAME from your hand, exile it until the end of the match. You may cast it from exile during another game this match. It still counts toward your deck minimum.)

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever an opponent casts a spell, that player mills two cards.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

, Pay 1 life: Add . Spend this mana only to cast an instant or sorcery spell.

Target player mills four cards.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

When Memory Test enters the battlefield, target opponent exiles cards from the bottom of their library until they exile five nonland cards, then turns those cards face down.

Visit — Name the exiled nonland cards, then look at the exiled cards. If you named them correctly, claim the prize

Prize — Create three 1/1 red Balloon creature tokens with flying, then sacrifice Memory Test and open an Attraction.

Lights — 5, 6

Flying

Whenever Memory Vampire deals combat damage to a player, any number of target players each mill that many cards. Then you may collect evidence 9. When you do, you may cast target nonland card from defending player's graveyard without paying its mana cost.

Paradox — Whenever you cast a spell from anywhere other than your hand, Memory Worm deals 2 damage to target player. That player discards a card, then draws a card. Put a +1/+1 counter on Memory Worm.

Trample, haste

When Menacing Ogre enters the battlefield, each player secretly chooses a number. Then those numbers are revealed. Each player with the highest number loses that much life. If you are one of those players, put two +1/+1 counters on Menacing Ogre.

Trample

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Prevent the next 4 damage that would be dealt to any target this turn.

Flying

Whenever Meneldor, Swift Savior deals combat damage to a player, exile up to one target creature you own, then return it to the battlefield under your control.

, Discard a card: Draw a card.

( can be paid with either or 2 life.)

Counter target spell with mana value 1.

Target player discards a card.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay . If you do, draw a card.

Flying

Each creature you control is a Vampire in addition to its other creature types and has "Whenever this creature deals damage to a creature, put a +1/+1 counter on this creature."

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."

At the beginning of your end step, if you didn't play a land this turn, you may draw a card.

, : 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.

: The next time Mercenaries would deal damage to you this turn, prevent that damage. Any player may activate this ability.

When Mercenary Knight enters the battlefield, sacrifice it unless you discard a creature card.

, Discard a card: Draw a card.

Whenever Merchant Raiders or another Pirate enters the battlefield under your control, tap up to one target creature. That creature doesn't untap during its controller's untap step for as long as you control Merchant Raiders.

Merchant Ship can't attack unless defending player controls an Island.

Whenever Merchant Ship attacks and isn't blocked, you gain 2 life.

When you control no Islands, sacrifice Merchant Ship.

Afflict 2 (Whenever this creature becomes blocked, defending player loses 2 life.)

, Discard a card: Merciless Eternal gets +2/+2 until end of turn.

When Merciless Executioner enters the battlefield, each player sacrifices a creature.

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

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

Draw two cards.

Flying

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