When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.
Printings View all
|Ravnica Allegiance: Guild Kits (GK2)||Rare|
|Return to Ravnica (RTR)||Rare|
Combos Browse all
|Commander / EDH||Legal|
Latest Decks as Commander
Detention Sphere Discussion
1 week ago
Hello! Thanks for the comment on my deck! I'll see what I can do.
Ok so I see a lot in the way of aggro and not a lot of answers to problems. Don't get me wrong, dedicated aggro decks can be devastating; but they need to be quick and those cards are almost exclusively in red. This deck looks like it kicks off around turn 3-5 so we want to be able to do stuff in the early game. Bant is a color scheme that lends itself well to defensive tactics rather than harming opponents; this can take the form of protection, buffing creatures, or stalling until our game-plan can get off the ground. Now at the end of the day that game-plan is still "turn creatures sideways", so we want to make sure that the creatures we select are aggressive; but, the control colors in our deck (white and blue) can provide us with a fair amount of answers to problems that we can use both early and mid game to ensure our victory.
So what we want from the deck is:
1) Board Control/Stall Tactics 2) Protection 3) Card Advantage 4) Aggressive creatures
Often times these categories can overlap. For example: a creature with hexproof. That fills the "aggressive creature" and "protection" categories so that means we're getting more value out of just that one card, which is what we want. Variety is both the spice of life and the answer to our deck-building conundrum. So we want to make sure that our card selection is refined. So lets break each category down.
Board Control/Stall Tactics
I love the options Bant gives us for board control. Green has a lot of artifact/enchantment removal, white has a lot of good spot removal in the form of "exile" which gets around that pesky indestructible ability, and blue often bounces things off the board or counters things. So what options are best? Honestly, its up to you. But remember that the more options that a card gives you the more value you get out of it. Here are a couple of my favorite board control cards in Bant:
That should give you enough options to play with and see which ones you like best.
Protection spells are many and can come in many different forms, but ultimately it comes down to making sure our permanents stay permanent. For us this is most likely gonna be about protecting our creatures. Some of my favorite protection spells in Bant are:
The longer our creature(s) stay on the field the more likely we are to win.
This can either mean card draw, digging through our library, or just straight up tutoring. Some good options are:
By giving ourselves card advantage, we can find solutions to problems a lot faster.
And finally we get to the bread and butter of the deck, the creatures. Now the mechanic we're working with is the Exalted mechanic, which states that if the player attacks with exactly one creature, then each card with Exalted (including the attacker) will grant that lone attacker +1/+1. This aggro tactic minimizes casualties in battle but doesn't reduce the armies strength during the attack phase. So the more instances of exalted we have the more powerful our lone attacker is. Here are some cards worth looking at into for this combat style:
With these creatures at our disposal, opponents will often find it hard to outgrow our aggressive playstyle.
Now keep in mind that the exalted mechanic itself is very aggressive and simultaneously acts as the "buff" aspect of our defensive tactics that mentioned near the top. So we need little in the way actual buffing spells like Giant Growth; that leaves much more room open for including a lot more control and card advantage spells. Ultimately what you pick is up to you but try using the cards I've listed above as the basis of your card selection and go from there. Cross reference which cards fall into multiple categories for the best options possible. I don't want to just straight up give you a decklist, I want you to choose the cards yourself and make a deck that's entirely your own. I hope my longwinded advice helped LOL happy deck building.
1 month ago
2 months ago
I'm not sure what Yorion would do other than let you reuse Eternal Witness, let you change Detention Sphere target, or reset Jace, the Mind Sculptor starting loyalty which is already pretty low. Just because it can be your companion doesn't mean it should.
2 months ago
It's coming a long nicely, there is still some work to be done though, I'd cut both Kasmina, Enigmatic Mentor and The Wanderer for wrath effects, ideally Supreme Verdict but there are other options such as Settle the Wreckage. Both the aforementioned walkers are very low impact and not particularly relevant ability wise, in other words, they are never going to be cards you are happy about drawing really.
I'm also not sold on a full playset of Quench that feels like it will just come back to hurt you as the game goes into the deeper turns you are more or less designed to dominate in. Instead, while I could see playing a single copy of quench I'd like some form of spot removal: Glass Casket, Declaration in Stone, Seal Away, Stasis Snare, Baffling End, and Detention Sphere all strike me as viable options here.
Finally, the mana needs to be re-worked, yes you are a jeskai deck primarily, but the most important thing you can do turn one in this deck is play Oath of Nissa, as such you want to be able to have access to green mana turn one. Ideally that will take the form of Breeding Pool and Temple Garden but that isn't very budget friendly. Instead, simply adding some basic forests to the deck will go a long way to better equipping the deck to succeed in the long game. With that in mind you may also want to find room for Fabled Passage if you have access to it as some form of mana fixing. Finally I'd cut a plains for a Raugrin Triome, just some additional cover as the game goes on, plus it cycles if you don't need it.
3 months ago
Testing out a couple of cards I’ve had my eye on the past few of years. Going to swap out Detention Sphere for Eerie Interlude and see if I like the extra blink/protection. This decision has been a long time coming. After hundreds of games over the past 5~ years of me using Brago, I think I used D Sphere 3 times? I have other modes of removal in the deck, and would prefer a extra means of blink value and protecting Brago from a board wipe. The other change is Lyev Skyknight, a long time pet card of mine, to Soul Herder. Loved Skyknight in RTR block, one of my favorite cards, but I think that having more blinking options would help boost the speed of the deck. The next couple of changes I’ll likely make after I play a few test games with the new cards will be Out: Dissolve Angel of Serenity and In: Disallow Agent of Treachery. These changes will be made at a later date.
3 months ago
Maybe Cathars' Crusade could be a thing in this deck. I would maybe play Rebuild too in order to replay your stuff, bounce opponents' artifacts. You can cycle it not needed, quite a cool card in my opinion. If it's about tokens, there's a really fun card Storm Herd. Not crazy but really funny. As counterspells I'd play Narset's Reversal and Render Silent. Maybe Perplex which is a bit off topic.Feel like Detention Sphere instead of Darksteel Mutation too.
4 months ago
Been thinking about this sort of strategy for a while. Here's what I've come up with:
First, Eternal Scourge. You'll want 12 copies of "cast from exile" creatures.
Second, Serum Powder. You effectively get Companion pre-nerf, but the creatures are slightly worse with the upside the you might start with 9, 10 or even 11 cards in hand. Might be worth mulliganing once or twice to try and get in some matchups.
Third, early game engines are key. While you probably could use Serum Visions, I really recommend that you use Relic of Progenitus and Pyxis of Pandemonium as turn one plays. Relic is good to control other people's GY, and Pyxis will effectively draw you a card every few turns.
Fourth, consider creature cost reduction effects. Marauding Raptor, is probably the best here, but any way to shave a mana or two off the cost is great. This is because your engine is likely based on having effectively immortal creatures while screwing with your opponent using GY hate and exile-based removal.
Fifth, you should be slpashing white. Your deck should be , because Rest in Peace, Path to Exile are great here. You might consider Perilous Vault as a sort of stored wrath effect. Declaration in Stone is actually solid here, as you can exile a couple of your Scourges and get Clues, effectively being a weird 2 mana Paradoxical Outcome. Of course, don't run too many mediocre removal spells. It doesn't help.
Other random tech that might be interesting:
Induced Amnesia, while only good when you have a lot of your creatures in hand, can act as a weird Divination.
Detention Sphere is fun with Pyxis. If you ever plan on cracking Pyxis for value, you should have Spheres. Of course, you probably don't want to crack Pyxis anyways because your opponent will get all the real value.
Some processor effects, like Processor Assault might be valuable here Especially if you have RIP out.
All in all, it's a weird gimmick that has the ability to randomly beat Dredge while generating value in the form of 'you never gonna get rid of my creatures'. If you get enough cost reduction, you can be playing all of your creatures for only , , or or in the case of Scourge. Remember the cost reduction.
Also, Simian Spirit Guide for the theme. And it also helps you power out some of your cost reductions and engine pieces, so it's good. And yes, FoNe is best here. FoRa? Meh, it's like a bad removal spell, which is okay, but not the greatest.
5 months ago
Realistically, your best bet for protecting Gideon from targeted removal is going to be Teferi's Time Twist. In addition to protecting him it has nice synergy with the Ozolith itself. Again, not really a competitively viable play pattern, but certainly the best method to protect Gideon with an instant speed spell in such a deck.
Detention Sphere could be an interesting piece as well as it's flexible in a Yorion deck.
But the best pieces for Yorion to work with are the ones that set up flicker loops easily which can make for lots of mana free Gideon flickers over a sequence of turns such as Felidar Guardian, Charming Prince, and Saheeli Rai (some of which are legal in Pioneer). Saheeli lets you flicker with Yorion on your turn twice (activation and end step), while the Prince nets a flicker on opposing endsteps and your endstep. With both you'd get 2 flickers on your turn and one at the opponent's end step with Ozolith gaining 13 loyalty counters per turn cycle. While this is more competitive than anything else in all likelihood, it's still got some weaknesses in both play pattern and deck construction that can potentially be exploited. As true Copy Cat is banned in Pioneer this is likely the best bet to make a Gideon+Ozolith combo truly function as the individual pieces are easier to sequence (Ozolith on 1, Prince on 2, Saheeli on 3, Gideon in 4, Yorion on 5) though card intensive enough to be inconsistent, especially in an 80 card deck. The upside is that with such pieces many of them play nice with Yorion itself and can provide some nice value while also digging for the combo components with cards like Omen of the Sea and Arcum's Astrolabe (not to mention the Prince itself can scry provided there's another means to flicker Yorion).