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Pojo's Magic The Gathering
Card of the Day

Daily Since November 2001!

Detention Sphere
Image from Wizards.com

Detention Sphere
- Return to Ravnica

Reviewed December 12, 2012

Constructed: 4.25
Casual: 4.25
Limited: 4.40
Multiplayer: 3.88

Ratings are based on a 1 to 5 scale
1 being the worst.  3 ... average.  
5 is the highest rating

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Card of the Day Reviews 


Detention Sphere

This is the answer in case Propagate decks get out of control (and its existence is probably why they won't). It does everything Oblivion Ring can do, it can't be undone by an opponent with the same card, and it takes out any duplicates. You can instantly wipe out a token army, or simply deal with whatever's most bothering you and so what if you don't get any other copies.

Things get interesting if you and your opponent have copies of the same card-- you can't take out your opponent's without also taking out your own. Or, if you can't target your opponent's for whatever reason, you can still take out your opponent's by targeting your own.

Constructed- 4
Casual- 4
Limited- 4
Multiplayer- 3.5

David Fanany

Player since 1995

Detention Sphere
I assume the main reason this exists is because they didn't like the fact that you can exile an Oblivion Ring with a second Oblivion Ring and set up bizarre, unintuitive changes of Rings within Rings within Rings (and not a Lord in sight). I feel obliged to point out that that sort of thing happens less often in singleton formats. Of course, it's also strong against the Selesnyans' token-heavy strategies, and is only very slightly harder to cast than its famous ancestor. I don't doubt that this will be a go-to card in high-level decks with both white and blue, and as the block's variant on Oblivion Ring it will be one of the defining cards in limited and block constructed.
Constructed: 4/5
Casual: 4/5
Limited: 4/5
Multiplayer: 4/5
Michael "Maikeruu" Pierno

Today's card of the day is Detention Sphere which is a three mana Blue and White aura that exiles target nonland permanent not named Detention Sphere and other permanents that share the name and when it leaves play it returns the cards to the owner's control.  This is very similar to Oblivion Ring with Maelstrom Pulse flavor that removes the interaction between multiple Oblivion Rings.  The multicolor aspect keeps this from being as flexible as the Ring, but the benefit against tokens and multiple copies of cards compensates for that noticeably.  Overall this will be a popular card in Blue/White decks, very likely maindecked or at least sidedecked for token swarms.

In Limited this is a great removal option for Azorius that should always be included as a weapon against tokens or any single threat that needs responding to.  An easy first pick in Booster and splashable for Sealed when the chosen guild shares a color.

Constructed: 4.0
Casual: 4.0
Limited: 4.5
Multiplayer: 4.0

Detention Sphere Card of the Day
John Shultis
     Welcome to another great card of the day review here at Pojo.com! Today we are looking at Detention Sphere from Return to Ravnica. Detention Sphere is a rare blue and white enchantment that costs one generic, one blue, and one white mana. Detention Sphere says when it enters the battlefield, you may exile target non-land permanent and all cards with the same name as the targeted permanent, as long as they are not named Detention Sphere. When Detention Sphere leaves play, return the exiled cards to the battlefield under their owners control. 
     Mass removal. That is what this is meant for. Like Oblivion Ring, it exiles something on the board for so long as the enchantment remains. Unlike O-Ring, if there should be multiple copies around, they all go into exile for as long as the Detention Sphere is out. While this is really useful, I find that perhaps what it is best suited for is a major blow dealer to token decks. Since they are permanently exiled by this, bouncing it around is nothing short of a nightmare for a token deck. 
     Outside of that, it is just as good as Oblivion Ring with a boost. 
Limited: 5/5
Constructed: 5/5
Casual: 5/5
Multiplayer: 4/5

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