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

Magma Rift deals 5 damage to target creature.

As long as there are four or more instant and/or sorcery cards in your graveyard, Magmatic Channeler gets +3/+1.

, Discard a card: Exile the top two cards of your library, then choose one of them. You may play that card this turn.

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.)

At the beginning of your end step, Magmatic Core deals X damage divided as you choose among any number of target creatures, where X is the number of age counters on it.

When Magmatic Galleon enters, it deals 5 damage to target creature an opponent controls.

Whenever one or more creatures your opponents control are dealt excess noncombat damage, create a Treasure token.

Crew 2

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Magmatic Sinkhole deals 5 damage to target creature or planeswalker.

Magnanimous Magistrate enters with five reprieve counters on it.

Whenever another nontoken creature you control dies, if its mana value was 1 or greater, you may remove that many reprieve counters from Magnanimous Magistrate. If you do, return that card to the battlefield under its owner's control.

Whenever another artifact is put into a graveyard from the battlefield, Magnetic Mine deals 2 damage to that artifact's controller.

When Magnetic Snuffler enters, return target Equipment card from your graveyard to the battlefield attached to Magnetic Snuffler.

Whenever you sacrifice an artifact, put a +1/+1 counter on Magnetic Snuffler.

If a creature with a magnet counter on it attacks, all creatures with magnet counters on them attack if able.

Whenever a creature with a magnet counter on it attacks, all creatures with magnet counters on them block that creature this turn if able.

, : Put a magnet counter on target creature.

Domain — For each basic land type among lands you control, Magnigoth Treefolk has landwalk of that type. (It can't be blocked as long as defending player controls a land of that type.)

Magosi, the Waterveil enters tapped.

: Add .

, : Put an eon counter on Magosi, the Waterveil. Skip your next turn.

, Remove an eon counter from Magosi, the Waterveil and return it to its owner's hand: Take an extra turn after this one.

, : Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

: Draw two cards, then discard three cards.

, : Untap X target lands.

, : Add for each Swamp you control.

Play with the top card of your library revealed.

You may play lands and cast spells from the top of your library.

: Add .

: Draw a card. Activate only if you have exactly seven cards in hand.

, Sacrifice Magus of the Mirror: Exchange life totals with target opponent. Activate only during your upkeep.

Nonbasic lands are Mountains.

, : Choose a card name, then reveal a card at random from your hand. If that card has the chosen name, Magus of the Scroll deals 2 damage to any target.

, : Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose control of the artifact, tap it.

, , Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

Flying, trample

Ward—Discard a card.

Creatures your opponents control have base toughness 1.

Flying (This creature can't be blocked except by creatures with flying or reach.)

When Mairsil, the Pretender enters, you may exile an artifact or creature card from your hand or graveyard and put a cage counter on it.

Mairsil, the Pretender has all activated abilities of all cards you own in exile with cage counters on them. You may activate each of those abilities only once each turn.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Vigilance

Whenever this creature mutates, you gain 4 life.

Flying

Whenever Majestic Heliopterus attacks, another target Dinosaur you control gains flying until end of turn.

Majestic Myriarch's power and toughness are each equal to twice the number of creatures you control.

At the beginning of each combat, Majestic Myriarch gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Creatures you control get +1/+0 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Battalion — Whenever Makeshift Battalion and at least two other creatures attack, put a +1/+1 counter on Makeshift Battalion.

Return target creature card from your graveyard to the battlefield with a mannequin counter on it. For as long as that creature has a mannequin counter on it, it has "When this creature becomes the target of a spell or ability, sacrifice it."

, Sacrifice an artifact or creature: Makeshift Munitions deals 1 damage to any target.

Rally — Whenever Makindi Patrol or another Ally you control enters, creatures you control gain vigilance until end of turn.

Creatures you control get +2/+2 until end of turn.

: Malachite Golem gains trample until end of turn.

When Malakir Blood-Priest enters, each opponent loses X life and you gain X life, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Choose target creature. You lose 2 life. Until end of turn, that creature gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Choose target creature you control and target creature you don't control. If the creature you control entered this turn, put a +1/+1 counter on it. Then those creatures fight each other.

Flash

When Malamet Scythe enters, attach it to target creature you control.

Equipped creature gets +2/+2.

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

When Malamet War Scribe enters, creatures you control get +2/+1 until end of turn.

When Malcator, Purity Overseer enters, create a 3/3 colorless Phyrexian Golem artifact creature token.

At the beginning of your end step, if three or more artifacts entered the battlefield under your control this turn, create a 3/3 colorless Phyrexian Golem artifact creature token.

Flying

Whenever one or more Pirates you control deal damage to your opponents, you create a Treasure token for each opponent dealt damage. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Partner (You can have two commanders if both have partner.)

Malefic Scythe enters with a soul counter on it.

Equipped creature gets +1/+1 for each soul counter on Malefic Scythe.

Whenever equipped creature dies, put a soul counter on Malefic Scythe.

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

Flying

: Put target card from a graveyard on the bottom of its owner's library. Activate only as a sorcery.

, Sacrifice an artifact or another creature: Put a +1/+1 counter on Malevolent Noble.

Gain control of target creature until end of turn. Untap that creature. It gets +2/+0 and gains haste until end of turn.

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.)

Enchant artifact or creature

When Malfunction enters, tap enchanted permanent.

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

Morbid — When you cast this spell, if a creature died this turn, you may copy Malicious Affliction and may choose a new target for the copy.

Destroy target nonblack creature.

All creatures get -2/-2 until end of turn. If a creature would die this turn, exile it instead.

Flash

Flying

You may have Malleable Impostor enter as a copy of a creature an opponent controls, except it's a Faerie Shapeshifter in addition to its other types and it has flying.