Magmatic Chasm


Format Legality
Tiny Leaders Legal
1v1 Commander Legal
Custom Legal
Magic Duels Legal
Heirloom Legal
Canadian Highlander Legal
Vintage Legal
Modern Legal
Penny Dreadful Legal
Block Constructed Legal
Casual Legal
Pauper EDH Legal
Leviathan Legal
Legacy Legal
Frontier Legal
Duel Commander Legal
Oathbreaker Legal
Unformat Legal
Pauper Legal
Commander / EDH Legal

Printings View all

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

Combos Browse all

Magmatic Chasm


Creatures without flying can't block this turn.

Magmatic Chasm Discussion

Kjartan on Red/White deck

8 months 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

8 months 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

9 months 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 ...

1 year 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.

Rhadamanthus on Under what circumstances do effects ...

1 year ago

It depends on whether the effect changes the rules of the game or changes the characteristics of objects on the battlefield.

If it changes the rules of the game, then it affects everything, including objects that enter the battlefield after the effect has resolved. Magmatic Chasm adds the rule "creatures without flying can't block".

If it changes the characteristics of objects on the battlefield (name, mana cost, type, rules text, P/T), then the set of objects it applies to is locked in at the time it resolves. Overrun adds +3/+3 to the power and toughness of creatures on the battlefield and also gives them the "trample" ability.

SmugLookingBarrel on Under what circumstances do effects ...

1 year ago

Why does Magmatic Chasm's effect also apply to creatures that enter the battlefield after it was cast, but Overrun's not? Is there a way to know whether a spell will apply to permanents that enter the battlefield later that turn?

Lemur16 on Xenagos

1 year ago

Cut Springsage Ritual into Nature's Claim Guttural Response Into Pyroblast Add Elvish Mystic I think u can easy cut Reliquary Tower Terastodon Is always good U NEED to play Bane of Progress Fun land that u can play is Arena Cards that u can cut are Magmatic Chasm Crash Through Ground Assault Rubblebelt Raiders

And if u want to play BIG COCK DECK then u need

Mokiflip on Vic Vinegar's 8Whack Whacktastic Wonder

1 year ago

Nevermind, I just noticed Seismic Stomp is a sorcery so I guess it's the same as Magmatic Chasm. Shame, I really would've preferred an instant.

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