Magmatic Chasm

Magmatic Chasm


Creatures without flying can't block this turn.

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Set Rarity
Shadows over Innistrad (SOI) Common
Dragons of Tarkir (DTK) Common

Combos Browse all


Format Legality
Unformat Legal
Casual Legal
Vintage Legal
Limited Legal
Duel Commander Legal
Modern Legal
1v1 Commander Legal
Canadian Highlander Legal
Leviathan Legal
Pioneer Legal
Block Constructed Legal
2019-10-04 Legal
Pauper EDH Legal
Oathbreaker Legal
Legacy Legal
Pauper Legal
Commander / EDH Legal
Highlander Legal
Tiny Leaders Legal

Latest Decks as Commander

Magmatic Chasm Discussion

_NotJohn_ on Coldeyes' Warrior Gang

1 month ago

TypicalTimmy as much as I love Adaptive Automaton and Metallic Mimic being in the deck, they are a bit expensive. I am trying to keep things as budget as I can. Barrage of Boulders and Magmatic Chasm though are definitely going to be added.

TypicalTimmy on Coldeyes' Warrior Gang

1 month ago

Adaptive Automaton and Metallic Mimic would be nice little boosters in here, too. Also Berserkers' Onslaught is both flavorful and cheap. Great fit, I think.

You can use Barrage of Boulders and Savage Beating as wincons to push damage out there. There's also Magmatic Chasm and Boldwyr Intimidator and Falter

Destroyerbirb on List of all infinite combos 2.0

4 months ago

Tana, the Bloodsower + Breath of Fury + a haste enabler such as Rhythm of the Wild + something like Magmatic Chasm for unblockable + another creature. (E.g. a Saproling made from Tana, the Bloodsower) = Near infinite Combat Steps. (Your opponents die before infinite combat steps.) Put Breath of Fury onto a creature other than Tana, the Bloodsower, then cast something that can give your creatures unblockable, such as Magmatic Chasm. Going to combat, swing both Tana, the Bloodsower and the creature with Breath of Fury at someone else. After damage is dealt, two triggers go on the stack. Create Saprolings with Tana, the Bloodsower, then sacrifice the creature with Breath of Fury and move the enchantment to one of the newly made Saprolings. Move to next combat and repeat until your opponents are dead.

Ziusdra on Card creation challenge

11 months ago

I know we did Nissa, but I had been thinking of this prompt and a different Nissa and had been wanting to submit it but haven't been able to get to my computer until now. So here's my submission and then we can continue with other shifted walkers.

Nissa, Tectonic Vengeance

Legendary Planeswalker - Nissa

+2 Creatures without flying can't block this turn.

-3 Destroy target land. You lose 1 life.

-5 Each opponent gets an emblem with, "At the beginning of your upkeep, this emblem deals damage to you equal to the number of land cards in your graveyard."


Basically she's a Tectonic Rift that can happen over and over again. Or Magmatic Chasm + Earth Rift . That makes her truly the opposite of what she is in green. Don't underestimate her ultimate, either; in a multiplayer edh format, everybody has fetchlands, sac lands, cycling lands, and Evolving Wilds and Fabled Passage and Lotus Field ... I mean, her ultimate hits everybody, and makes people think about filtering cards from their hands. It gets through their pillow forts and their deathtouch armies, and puts a clock on each opponent. And for opponents who don't put lands into their graveyard (maybe mono colored opponents), she comes with an ability that helps with that. :)

So yeah, the former challenge remains

Kjartan on Red/White deck

1 year ago

You could probably drop 2x Goblin Gathering , Radiating Lightning , Sandblast , Mad Prophet , Magmatic Chasm , 1x Blade Instructor and Divine Verdict for 4x Lightning Bolt and 4x Oblivion Ring .

Now, I'm about to explain something really weird to you.

Back it the day, you couldn't actually target planeswalkers with things that dealt damage. Instead whenever a player would be dealt damage by a source other than a creature dealing combat damage, that source's controller could choose to redirect it to a planeswalker that player controls instead.

Other than just not being very intuitive, this made for some really weird interactions.

Vexing Devil or Browbeat for example, could be used to kill planeswalkers which definately wasn't what they were intended to do, and if a player had hexproof, their planeswalkers could no longer be damaged by things like Shock , due to technically needing to target the player for that to happen.

So they changed the rules so that Planeswalker had to be targeted like they would be by a removal spell such as Hero's Downfall , opting to errata every old card that used to say "damage to target creature or player" to say any target, so that they would still work the way they were intended.

So Lightning Bolt is the exact same card as Shock it just deals an extra damage, it's just too old to have the opdated text printed on the card.

Kjartan on Red/White deck

1 year ago

If you remove Magmatic Chasm and Mad Prophet , you would have a standard legal deck. Though, I guess that woulnd't really matter if you're playing with friends and they all play modern, (or if you want to compete with this in modern tournerys.)

If you want to stay modern the main card to look out for is Lightning Bolt - Cheap removal as well as a way to finish the game.

As for your enchantment problem, I don't think it's worth it to include much enchantment removal since enchantments are both an underrepresented card type, and a card type that's usually not very important to deal with. That's why enchantment removal is normally reserved for the sideboard, (but I assume you don't play this in a best of thee inviornment, so I guess that's not an option.)

Therefore I would suggest you to run Oblivion Ring instead, as it's a decently well consted and very flexible removal spell that will almost never get stuck in your hand or get wasted on a Utopia Sprawl the way Erase sometime will.

Cereal_Killer on Mage-Ring Bullying

1 year ago

First of all, what's your budget?

Then, since you want to go really fast, making big as soon as possible your creatures and dealing tons of damages immediately, why don't you consider Kiln Fiend or Monastery Swiftspear ?

Then, other "must have in this type of deck", in my opinion are: Mutagenic Growth (who cares if you lose 2, your creature gets bigger) and Apostle's Blessing

Now, cards I personally don't like in this deck:

Some cards I'd consider, but are not budget: shock and fetch lands, Thoughtseize , Inquisition of Kozilek , Blood Moon (in sideboard)

LGFlatron on Under what circumstances do effects …

2 years ago

Short answer:

  • spells that have a continuous effect that modify the characteristics of objects (e.g Creatures you control get +3/+3 and gain trample until end of turn) will only affect objects that exist as the spell resolves.

  • spells that have a continuous effect that don’t modify the characteristics of objects (e.g Creatures without flying can’t block this turn) will only affect objects that exist as the spell resolves.

The relevant ruling is 611.2c:

Ruling 611.2c Show

Note: Not everything is a characteristic, ruling 109.3 lists what counts as a characteristic:

Ruling 109.3 Show

The Gatherer rulings also support this:

Magmatic Chasm

  • Because Magmatic Chasm’s effect doesn’t change the characteristics of any permanents, the set of creatures affected by Magmatic Chasm is constantly updated. Creatures without flying that enter the battlefield later in the turn won’t be able to block.


  • Overrun affects only creatures you control at the time it resolves. It won’t affect creatures that come under your control later in the turn.
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