Miasmic Cove enters tapped.
{T}: Add {B} or {G}.
{4}{B/G}: Miasmic Cove becomes a 2/3 black and green Snake creature with deathtouch until end of turn. It's still a land. This ability costs {X} less to activate, where X is your devotion to black and green. Activate only once each turn.

Exile the top three cards of your library. You may play up to two of those cards this turn.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Then if you control three or more enchantments, draw a card.

When Minister of Utility enters, make a pledge.
{2}, Sacrifice a Clique: Make a pledge.

Solidarity
When Minoan Engineer dies, create a 1/1 colorless Thopter artifact creature token with flying.

Whenever Minou, the Russet Whisker attacks, you may tap up to one target creature an opponent controls and untap up to one target creature you control. If the creature you control had vigilance, put a +1/+1 counter on it.

Mirrormeld Spire has all abilities of land cards integrated onto permanents you control.
{T}: Add {C}.
{C}, {T}: Integrate the top card of target player's library.

Return target creature or enchantment to its owner's hand. If that permanent's controller has eight or more cards in their graveyard, its owner puts it on the top or bottom of their library instead.

{1}{B}, Pay 2 life: Mob Hangman dares 4.
Whenever Mob Hangman attacks, if it's a Rebel, each opponent sacrifices a creature or planeswalker unless they discard a card.

Whenever a creature you control becomes a Rebel, creatures you control get +1/+0 until end of turn.
{2}{R}: Mob Instigator dares 4.

Choose one. If your devotion to black is three or greater, you may choose another. The same is true for devotion to red.
• Create two tapped Treasure tokens.
• Creatures you control get +2/+0 until end of turn.
• Choose a nonland permanent type. Each opponent sacrifices a permanent of that type.

Indestructible
As long as your devotion to black and red is less than seven, Mogis isn't a creature.
Whenever you attack, each opponent loses 1 life for each creature attacking them. If a player lost 5 or more life this way, that player discards a card.

When Mokar Cliffbreaker enters, you may exile a land card from your graveyard. If you do, you gain 4 life.
Wander {5}{G}{G}

Vigilance
Whenever Mokar Warband attacks, create a 1/1 white Human creature token that's attacking.

Ward—Sacrifice a permanent.
Whenever you cast a spell that targets Molpadia, the Last Acephali, exile the top card of your library. You may play it this turn.

Choose one —
• Molten Erosion deals 2 damage to each creature.
• Destroy target artifact.

Flying
Whenever Molten Slagmaw enters or attacks, each opponent sacrifices an artifact or nonbasic land.

Tap up to two target creatures. Put a stun counter on each of them.

Cast this spell only during your turn.
Target creature gets +2/+0 and gains haste until end of turn. If it's attacking, instead it gets +2/+0 and gains trample until end of turn.
Flashback {1}{R}

Trample
Whenever Mondo attacks, create a 1/1 colorless Soldier creature token that's tapped and attacking, then Mondo gets +X/+0 until end of turn, where X is the number of attacking creatures.

Target creature gains first strike and gets +X/+0 until end of turn, where X is your devotion to red.

Monument to Might's power and toughness are each equal to the number of lands you control.
You may look at the top card of your library any time, and you may play lands from the top of your library.
Spellcharge 5

Drop — When Morasha Moshlord enters, if you didn't cast any creature spells during your last turn, all creatures get +2/-2 and gain menace until end of turn.

Ward {1}
Whenever Morbid Bloomer deals combat damage, you may pay {1}. When you do, return up to one other target permanent card from your graveyard to your hand.

Moresso, Infuser of Light is all colors.
Hexproof from monocolored
Whenever you cast a spell with four or more mana symbols in its mana cost, add four mana of different colors. This ability triggers only once each turn.