Prismatic Geoscope

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Legality

Format Legality
1v1 Commander Legal
Archenemy Legal
Canadian Highlander Legal
Casual Legal
Commander / EDH Legal
Commander: Rule 0 Legal
Custom Legal
Duel Commander Legal
Highlander Legal
Legacy Legal
Leviathan Legal
Limited Legal
Oathbreaker Legal
Planechase Legal
Quest Magic Legal
Vanguard Legal
Vintage Legal

Prismatic Geoscope

Artifact

Prismatic Geoscope enters the battlefield tapped.

Domain: Gain X mana in any combination of colours, where X is the number of basic land types among lands you control.

Dreeks1991 on Mairsil, The Pretender

1 year ago

Thanks for checking out my list! I hadn't updated my decks in a few months so I'm just seeing this now. So I kind of cover why I run so much additional protection in my build in the primer, but the short answer is that my playgroup is very heavy on removal and they know the best way to shut this deck down is to keep Mairsil off the board. AEtherling just doesn't cut it as the only source of protection. It's not meant to be a cEDH build and I doubt it could hang with a cEDH table lol. It's definitely on par with the power level of my playgroup though.

I prefer Spikeshot Elder over Hateflayer because it doesn't require Mairsil to be tapped to activate it, which is helpful outside of the Tree of Perdition combo because I can shoot down planeswalkers and creatures with just the three mana. I did use to run Hateflayer though! I also have a few other untap effects that are cheaper to use mana-wise and allow me to combo off with Quicksilver Elemental and Prismatic Geoscope and the cards they're on also provide a lot of other value.

In terms of the Walking Ballista combo, I use him as a wincon in my elfball deck so I'm not interested in using him again in another deck, although it is a solid wincon!

I used to do a lot of jankier stuff with Mairsil (hence the giant Maybeboard lol) but my group goes super hard on him anymore so he's gotta be a little more cutthroat and bare bones if I want to win with him, which I do!

Grubbernaut on Guess Who's Back, Back Again, And Again

2 years ago

Gem of Becoming and Prismatic Geoscope are what I'd cut first, for Arcane Signet and one of your other signets, or Wayfarer's Bauble.

You also might consider some protection like Dispel, Swan Song, Drown in the Loch, Pyroblast, Red Elemental Blast.

Neotrup on None

3 years ago

@aznb01777 In the future, if you have any questions that need to be addressed, please submit them as new questions so they can be put into the new questions section for visibility. All the rulings I'll be listing will come from Prismatic Geoscope 's Gatherer page, and the rule from the comprehensive rules as of February 2nd 2021.

As was stated in this thread earlier, there are 5 basic land types as defined by rule 305.6:

305.6. The basic land types are Plains, Island, Swamp, Mountain, and Forest. If an object uses the words "basic land type," it’s referring to one of these subtypes. An object with the land card type and a basic land type has the intrinsic ability "{T}: Add [mana symbol]," even if the text box doesn't actually contain that text or the object has no text box. For Plains, [mana symbol] is {W}; for Islands, {U}; for Swamps, {B}; for Mountains, {R}; and for Forests, {G}. See rule 107.4a. See also rule 605, "Mana Abilities."

Having multiple basic lands of the same basic land type does not increase the mana produced by Prismatic Geoscope :

11/8/2016 How many lands you control of a particular basic land type is irrelevant to a domain ability, as long as that number is greater than zero. As far as domain is concerned, ten Forests are the same as one Forest.

Even though Snow-Covered Plains and Plains have different names, they share the Plains subtype, so they're not counted separately:

11/8/2016 To determine the number of basic land types among lands you control, look for the Plains, Island, Swamp, Mountain, and Forest subtypes among the lands you control. Count each subtype that appears one or more times toward the number of basic land types among lands you control. This number can't exceed five.

Note that the ruling specifically calls out that the number can't exceed 5. If snow-covered basics and regular basics were counted separately, it could go up to 10.

beets on

3 years ago

sorry for the double post but.... i just realized some more cards that you really don't want to be running currently. Prismatic Geoscope is extremely expensive for a ramp spell. i would try replace this with a cheaper ramp spell. a simple Rampant Growth or Farseek would do well here.

i don't know why you are running Murderer's Axe... is it because you want to discard cards? if so i would instead replace it with either Chainer, Nightmare Adept if you wanna stay budget, or Fauna Shaman if you're willing to spend more on this thing. both give great value, and synergize with your deck better than this equipment does. which would you prefer: discarding a card to give +2/+2? or discarding a card to cast any creature from your graveyard and give it haste? notice you could recast Shriekmaw for it's evoke cost of every turn. that's value!

or Wolf of Devil's Breach. this card could also be a wincon for your deck and am surprised not to see it among your list already.

Realm-Cloaked Giant doesn't fit in your theme at all unless you are running Maskwood Nexus. so unless you're going to put that in there, i'd replace it with another board-clear spell.

and finally, i forgot some really important elementals that you will WANT to run in this deck!

you really need some cheaper spells to cast on early turns... Ashling the Pilgrim and Brighthearth Banneret are both amazing. Ad Brighthearth is ramp, which every deck needs.

Slithermuse is another evoke elemental, and this one cast refill your hand! again, every deck needs to draw cards.

Animar, Soul of Elements is also HUGE ramp. worth the price.

Muldrotha, the Gravetide let's you cast so many more spells each turn! definitely going to be happy whenever you draw her.

Multani, Yavimaya's Avatar is just a huge monster..... paying for a creature with potentially 20 power is too cool to pass up.

alright i've chewed your ear off enough...... good luck and have fun deckbuilding!

WorldEater_42 on What do you have that I cannot obtain?

3 years ago

Hi sSasquatch, thanks for tuning in! The majority of my wins come from

I haven't been able to play in a few months due to a long work trip but would definitely recommend the new Sakashima of a Thousand Faces if you aren't running it already. Happy caging!

seshiro_of_the_orochi on

3 years ago

This deck is just nasty, very good job. I've just finished my own Archelos, but am going a Landfall route instead of playing full stax. I still took some inspiration from a couple of your cards. Have you considered Freed from the Real as redundancy for Pemmin's Aura? Some more great cards for Durdle Turtle are Prismatic Geoscope, Borrowing 100,000 Arrows and Paradise Mantle.

In case you're interested, you can find my list here:

Master Oogway's Guide to a long life

Tiny_Sir on One Imaginative Boi

3 years ago

Mainboard Cuts: Worn Powerstone kinda sucks. I'd rather pay one more for Hedron Archive or even Sisay's Ring.

Cathartic Reunion is just better Tormenting Voice in your deck. Run Chandra hugging mom instead of Tormenting.

Cuts from the Sideboard listed cards:

Prismatic Geoscope: Running 18 basics means you might not always get 3 mana from it, more like 2. Eitherway I feel it's bad as a rock and lackluster as a cage target.

25 cards I'll suggest for <15$ (EDHREC TCGPLAYER listed prices, may be higher or lower):

  1. Final Parting: Double tutor, one to the yard one to hand. Good investment for 5 mana. It's no Buried Alive but we can't expect many cards to be. (Price: .90)

  2. Cephalid Inkshrouder: Discard which doesn't matter to make shrouded Mairsil? Hell yeah. (Price: 0.29)

  3. Soliton: Another U: untap is solid. (Price: 0.10)

  4. Forbidden Alchemy: Basically a draw 4 most of the time for 3 mana and can be flashed back if you discard it or mill it another way. (Price: 0.11)

  5. Pestilent Souleater: Can be a backup win con with a card or two that can also pump. (Price: 0.10)

  6. Blighted Bat 1 for haste is worth it when not having Anger in GY or Hammer of Purphoros on board. (Price: 0.05)

  7. Twisted Abomination: Get a land with it then give Mairsil regenerate for a black when his commander tax is too high. Can never have too much protection when the commander is the whole gameplan. (Price: 0.03)

  8. Magus of the Bazaar: Draw 5 for tap on Mairsil. What's not to like? (Price: .46)

  9. Etherium-Horn Sorcerer: 3 To replay Mairsil isn't bad. Also can just be a cascade card if need be. (Price: 0.15)

  10. Cinderhaze Wretch: Untap affect + can be used to disrupt enemies. Also can be used on yourself if you really want for some weird reason? (Price 0.26)

  11. Dreamscape Artist: Discard isn't a downside, and it ramps. Can be put on Mairsil as well if need be. (Price: 0.26)

  12. Vector Asp: B: infect is very strong. Especially with following card. (Price: 0.20)

  13. Spikeshot Elder: This plus infect is a gross combo. Even without R to deal 4 to any target is strong, better than lightning bolt! (Price: 0.21)

  14. Grinning Ignus: A way to bounce Mairsil that's ALSO ramp. Pays for a commander tax! (Price: 0.16)

  15. Frantic Search: Free loot isn't ever bad. Instant speed too. (Price 0.47)

  16. Sinister Sabotage: You don't have much interaction. These next 3 are just interactive pieces to stop your opponents from racing you. Sinister is a good counter that also can basically draw a card with Surveil. (Price: 0.12)

  17. Terminate: No regen for them! Instant speed kill. Nice. (Price: 0.44)

  18. Arcane Denial: Great counterspell that's not mana intensive. (Price: 0.46)

  19. Perplex: Either a counter, makes an opponent lose their hand, or you can transmute to tutor for a 3 drop such as Rings or Commander's Sphere. Very versatile. (Price: 1.24)

  20. AEtherize: Bounce all attackers is a good way to protect yourself, since you already have many ways to protect Mairsil. (Price: 0.23)

21/22. Isochron Scepter/Dramatic Reversal: With enough mana rocks infinite mana and with that you can win for sure. (Price for both: 5.30). I think it's a worth it investment.

  1. Whispering Madness: Wheel that can be repeated. With GY synergies it's amazing. 10/10 (Price 0.57)

  2. Chain Reaction: Boardwhipe most of the time. You need some mass removal. (Price: 0.67)

  3. Pyroclasm: Clears tokens easily. (Price: 0.16)

Total Price: $12.94

Some pump activated abilities may be a good other add.

DemonDragonJ on Why Does Nyx Lotus Enter …

3 years ago

DeinoStinkus, is that also the reason for which Prismatic Geoscope enters the battlefield tapped?

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