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

Landfall — Whenever a land you control enters, you gain 2 life. Then if you control a Mountain and a Plains, each opponent loses 2 life.

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.

When Moving Mountains enters, search your library for a land card, put it onto the battlefield tapped, then shuffle.
If a Ruin you control would stop being a creature, it becomes a creature in addition to its other types for as long as you control Moving Mountains.

Target creature gets -3/-3 until end of turn.
Surface {5}{B}

As an additional cost to cast this spell, discard a card.
Draw two cards.

Whenever Music Master attacks, you may pay {U}. If you do, put a curio counter on another target creature you control.
{1}{U}: Target creature gains flying until end of turn.

Trample
Whenever you attack, up to one target attacking creature gets +2/+0 and gains trample until end of turn.

Whenever one or more cards leave your graveyard, you gain 2 life. This ability triggers only once each turn.

Mykian, Pop Paragon enters with a +1/+1 counter on it for each color of mana spent to cast it.
Remove two counters from Mykian: Draw two cards.

When Mystery Egg enters, search your library for a card and exile it face down, then shuffle your library. You may look at that card as long as it remains exiled.
{G}, {T}, Sacrifice Mystery Egg: Turn the exiled card face up. You may cast that card this turn if it's a creature spell, and you may cast that spell as though it had flash.

Flash
When Narzi, Hero of the Mokar enters, up to one other target creature gets +1/+1 and gains indestructible until end of turn. If she wandered, other creatures you control get +1/+1 and gain indestructible until end of turn instead.
Wander {4}{W}{W}

Creatures you control get +2/+0 until end of turn. Up to one target Elemental you control gains first strike until end of turn.

[+1]: Exile the top card of your library. You may play it this turn. If that card doesn't share a name with a permanent you control or a card in your graveyard, add {R}{R}.
[–2]: Gain control of target creature until end of turn. Untap that creature. It gains haste and menace until end of turn.
[–6]: You get an emblem with “Whenever you amp it up, this emblem deals 2 damage to any target.”

When Neon Colossus dies, draw a card.

Flying
Neotech Exploiter gets +2/+0 for each permanent you control but don't own.