Detention Sphere
Detention Sphere Price Summary
As of Aug 1, 2026, the cheapest tracked printing of Detention Sphere is $0.21 (RTR #155), and the most expensive is $1.26 (RTR #155, Foil). The benchmark price (cheapest playable nonfoil) is $0.21, down 4.5% over 7 days, down 4.5% over 30 days, down 8.7% over 90 days. All-time tracked high: $0.27 (2026).
Detention Sphere Printings & Prices
Detention Sphere has 3 tracked printings across 3 sets, in nonfoil and foil finishes, including showcase treatments.
Sell Detention Sphere: Buylist Offers
Card Kingdom currently pays $0.63 cash for RTR #155 (Foil); the retail-buylist spread on that printing is 75% (wide).
| Buyer | Printing | Finish | Cash offer | Retail | Spread |
|---|---|---|---|---|---|
| Card Kingdom | RTR #155 | Foil | $0.63 | $2.49 | 75% |
| CoolStuffInc | OTP #43 | Foil | $0.25 | — | — |
| starcitygames | RTR #155 | Foil | $0.25 | — | — |
| Card Kingdom | GK2 #10 | Nonfoil | $0.20 | $0.79 | 75% |
| starcitygames | GK2 #10 | Nonfoil | $0.10 | — | — |
| starcitygames | OTP #43 | Foil | $0.10 | — | — |
| Card Kingdom | OTP #43 | Foil | $0.10 | $0.49 | 80% |
| starcitygames | RTR #155 | Nonfoil | $0.10 | — | — |
| Card Kingdom | RTR #155 | Nonfoil | $0.09 | $0.59 | 85% |
| starcitygames | OTP #43 | Nonfoil | $0.08 | — | — |
Detention Sphere Rules Text & Legality
When this enchantment enters, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When this enchantment leaves the battlefield, return the exiled cards to the battlefield under their owner's control.
Detention Sphere is legal in Pioneer, Modern, Legacy and Commander, and not legal in Standard and Pauper.
Detention Sphere Rulings
- Oct 1, 2012 Although the target of the "enters" ability must not be a land, lands with the same name as that permanent will be exiled.
- Oct 1, 2012 If Detention Sphere leaves the battlefield before its "enters" ability has resolved, its leaves-the-battlefield ability will trigger and do nothing. Then the "enters" ability will resolve and exile the targeted nonland permanent and other permanents with that name indefinitely.
- Oct 1, 2012 If the target nonland permanent is an illegal target when the "enters" ability tries to resolve, it won't resolve and none of its effects will happen. No permanents will be exiled, including those with the same name as the target.
- Oct 1, 2012 The "enters" ability has only one target. The other permanents with that name aren't targeted. For example, a permanent with protection from white will be exiled if it has the same name as the target nonland permanent.
Reprints & Reprint Risk
Detention Sphere has been reprinted 5 times. The Breaking News reprint cut the price 76% in 30 days.
| Set | Date | Rarity | Treatment | Price before | Day 1 | 30 days | 90 days |
|---|---|---|---|---|---|---|---|
| OTP #43 | 2024-04-19 | Rare | Showcase | $0.29 | $0.06 | $0.07 | $0.13 |
| OTP #43 | 2024-04-19 | Rare | Showcase | $0.54 | $0.20 | $0.25 | $0.18 |
| GK2 #10 | 2019-02-15 | Rare | Standard | — | — | — | — |
| RTR #155 | 2012-10-05 | Rare | Standard | — | — | — | — |
| RTR #155 | 2012-10-05 | Rare | Standard | — | — | — | — |
OTP #43 
GK2 #10 
RTR #155 Detention Sphere in Commander
Detention Sphere is the #8,295 most-played card on EDHREC, down 97 places over the last 30 days.
Detention Sphere FAQ
How much is Detention Sphere worth?
Detention Sphere is worth about $0.21 for its cheapest playable printing as of Aug 1, 2026. Prices range from $0.21 to $1.26 across 3 tracked printings.
Is Detention Sphere legal in Commander?
Yes — Detention Sphere is legal in Commander. It is also legal in Pioneer, Modern and Legacy.
Has Detention Sphere been reprinted?
Yes — Detention Sphere has been reprinted 5 times, with 3 printings tracked on The Index.
Why is Detention Sphere cheap?
Detention Sphere trades at about $0.21 — 5 reprints keep supply plentiful, and Commander demand is modest (#8,295 on EDHREC).