At the beginning of each player's precombat main phase, that player adds .

, , Exile Magus of the Will: Until end of turn, you may play lands and cast spells from your graveyard. If a card would be put into your graveyard from anywhere this turn, exile that card instead.

Reveal the top X cards of your library, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. You may put any number of permanent cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Flying

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

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.)

Flying

When Malfegor enters the battlefield, discard your hand. Each opponent sacrifices a creature for each card discarded this way.

Malignus's power and toughness are each equal to half the highest life total among your opponents, rounded up.

Damage that would be dealt by Malignus can't be prevented.

When Mana Geode enters the battlefield, scry 1.

: Add one mana of any color.

Flying, trample

Join forces — Whenever Mana-Charged Dragon attacks or blocks, each player starting with you may pay any amount of mana. Mana-Charged Dragon gets +X/+0 until end of turn, where X is the total amount of mana paid this way.

Trample

Whenever a player casts a spell, put a +1/+1 counter on Managorger Hydra.

: Exile Mangara of Corondor and target permanent.

You gain 5 life.

When a spell or ability an opponent controls causes you to discard Mangara's Blessing, you gain 2 life, and you return Mangara's Blessing from your graveyard to your hand at the beginning of the next end step.

When Mangara's Tome enters the battlefield, search your library for five cards, exile them in a face-down pile, and shuffle that pile. Then shuffle your library.

: The next time you would draw a card this turn, instead put the top card of the exiled pile into its owner's hand.

Enchant creature

Enchanted creature gets +2/+2 and can't block.

Reveal the top ten cards of your library. Starting with the next opponent in turn order, each opponent chooses a different nonland card from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.

Manor Gate enters the battlefield tapped.

As Manor Gate enters the battlefield, choose a color other than green.

: Add or one mana of the chosen color.

Equipped creature gets +1/+2 and has ": Destroy target Equipment."

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

: Mantis Engine gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)

: Mantis Engine gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Players can't draw cards.

At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles.

: Regenerate Marang River Skeleton.

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.)

Marauding Boneslasher can't block unless you control another Zombie.

Haste

When Marauding Dreadship enters the battlefield, incubate 2. (Create an Incubator token with two +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

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.)

Raid — At the beginning of your end step, if you attacked this turn, you may draw a card. If you do, discard a card.

Creature spells you cast cost less to cast.

Whenever another creature enters the battlefield under your control, Marauding Raptor deals 2 damage to it. If a Dinosaur is dealt damage this way, Marauding Raptor gets +2/+0 until end of turn.

Flying

: Marble Gargoyle gets +0/+1 until end of turn.

As an additional cost to cast this spell, you may exile any number of green cards from your hand. This spell costs less to cast for each card exiled this way.

Choose target creature with mana value less than X. Search your library for a creature card with the same name as that creature, put it onto the battlefield tapped, then shuffle.

Choose target artifact creature you control. For each creature chosen this way, create a token that's a copy of it.

Overload (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

: Target creature you control gains haste until end of turn and can't be blocked this turn.

When Mardu Blazebringer attacks or blocks, sacrifice it at end of combat.

Rampage 1 <I>(Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)</I>

Whenever Marit Lage's Slumber or another snow permanent enters the battlefield under your control, scry 1.

At the beginning of your upkeep, if you control ten or more snow permanents, sacrifice Marit Lage's Slumber. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

When Market Gnome dies, you gain 1 life and draw a card.

When Market Gnome is exiled from the battlefield while you're activating a craft ability, you gain 1 life and draw a card.

Double strike

Master Tactician — Whenever one or more tokens enter the battlefield under your control, draw a card.

Chapter Master — : Create two 2/2 white Astartes Warrior creature tokens with vigilance.

All Rats have fear.

, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Tap any number of untapped creatures you control. You gain 4 life for each creature tapped this way.

Target creature gets +3/+0 until end of turn.

Target creature gets +0/+3 until end of turn.

Equipped creature has flying and lifelink.

Whenever equipped creature dies, you may pay X life, where X is its power. If you do, draw X cards.

Equip

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

: Masked Blackguard gets +1/+1 until end of turn.

Menace

Creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)

Whenever a creature an opponent controls dies, if its toughness was less than 1, draw a card.

Target creature gets +2/+2 and gains trample until end of turn.

You may have Masterwork of Ingenuity enter the battlefield as a copy of any Equipment on the battlefield.

: Draw a card, then discard a card.

, : Transform Matzalantli, the Great Door. Activate only if there are four or more permanent types among cards in your graveyard. (Artifact, battle, creature, enchantment, land, and planeswalker are permanent types.)

Flying

Multicolored creatures you control have flying.

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

Whenever Meandering Towershell attacks, exile it. Return it to the battlefield under your control tapped and attacking at the beginning of the declare attackers step on your next turn.

As Meddling Kids enters the battlefield, choose a word with four or more letters.

Spells with the chosen word in their text box can't be cast.

Haste

Whenever you attack with three or more creatures, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Flying

Whenever Medomai the Ageless deals combat damage to a player, take an extra turn after this one.

Medomai the Ageless can't attack during extra turns.