The Brothers' War
Open one box and you'll get $252.60 of cards, on average. A box costs $387 right now, so that means you're $134.50 short.
Cards inside
$252.60
Everything in the box, at today's prices
Box costs now
$387
TCGplayer market · from $374
Difference
-$134.50
Against you
Packs in the box
30
Each holds at least one rare or mythic
Box price from TCGplayer, checked October 12, 2026 · Card prices from Scryfall (TCGplayer market data) · last updated October 16, 2026
This is an average. A few very expensive cards pull it upward, so most individual boxes land below it. Opening one box is closer to a lottery ticket than an investment — the number below tells you whether the lottery is priced fairly.
$252.60 is what the cards are worth to a buyer. It is not what you would be paid for them.
Worth to a buyer
$252.60
Every card at market price
What you'd keep
$117.00
About 46% of it, sold card by card
Stuck as bulk
34%
Cards worth more by the thousand than listed
Two things separate the two figures. Fees take 10.75% commission plus 2.5% and $0.30 on every order, and postage on a single card runs about $1.10 — a bite a cheap card cannot absorb. And 34% of the box's value sits in cards below roughly $1.66, the point where a card is worth more thrown into a bulk lot at $0.04 a rare than listed, packed and posted. Selling the whole box to a buylist in one go pays less again.
Assumes one card per order, which is the cautious reading — a buyer taking several cards at once splits the fixed costs between them. Fees are TCGplayer Marketplace rates as of February 2026; bulk rates are current cash buylist.
We start from what a box costs right now. Put in the price you're actually being asked to pay and the answer updates.
-$134.50
per box, against you
You would do better buying the singles
At $387 a box you'd come up about $134.50 short on average. Buying the individual cards you want will usually cost less.
Break-even price
$252.60
Pay less than this and you're ahead on average.
Every pack has a few fixed positions — a guaranteed rare, a wildcard, a foil. Here's what each one is worth across the whole box.
Brr retro artifact
One of the card positions in every pack of this product.
Per pack
$2.13
Whole box
$63.90
$37.50 kept
Share
25%
Rare or mythic
The one guaranteed rare or mythic in every pack. This is where most of a box’s value sits.
Per pack
$2.02
Whole box
$60.60
$33.60 kept
Share
24%
Foil incl. showcase
A foil version of this slot.
Per pack
$1.16
Whole box
$34.80
$19.50 kept
Share
14%
Wildcard
An extra card of any rarity. Most of the time it is a common or uncommon, but it can be a second rare.
Per pack
$1.02
Whole box
$30.60
$13.20 kept
Share
12%
The List
A reprint pulled from a rotating list of older cards. It replaces a common in a small share of packs.
Per pack
$0.68
Whole box
$20.40
$12.30 kept
Share
8%
Uncommons
Three per pack. Occasionally one is worth real money.
Per pack
$0.65
Whole box
$19.50
$0.30 kept
Share
8%
Commons
The bulk of the pack. Individually worth very little.
Per pack
$0.51
Whole box
$15.30
$0.30 kept
Share
6%
Basic land
The basic land. Worth essentially nothing unless it is a full-art foil.
Per pack
$0.19
Whole box
$5.70
$0.00 kept
Share
2%
Everything else
3 smaller slots — alternate-art pairs, bonus sheets and the like, each under 2% of the box.
Per pack
$0.05
Whole box
$1.50
$0.00 kept
Share
1%
The ten most valuable cards a Set Booster can produce, and roughly how often one shows up.
#1 most valuable
Mox Amber
$249.51
You'll open one about 1 every 25 boxes
#2 most valuable
Mox Amber
$193.04
You'll open one about 1 every 7 boxes
#3 most valuable
Aetherflux Reservoir
$60.15
You'll open one about 1 every 25 boxes
Portal to Phyrexia
$54.74
Old Gnawbone
$54.01
Altar of Dementia
$43.19
Urza's Saga
$42.43
Aetherflux Reservoir
$38.05
Mystic Forge
$32.07
Unwinding Clock
$31.33
391 cards. “Copies per box” is how many of that exact card you'd expect from one box on average — under 1 means you usually won't see it at all.
| Mox Amber | mythic | $96.79 | 0.04 |
| Mox Amber | mythic | $88.46 | 0.15 |
| Old Gnawbone | mythic | $54.01 | 0.02 |
| Portal to Phyrexia | mythic | $50.11 | 0.24 |
| Urza's Saga | rare | $42.43 | 0.02 |
| Aetherflux Reservoir | mythic | $31.71 | 0.04 |
| Altar of Dementia | mythic | $24.51 | 0.04 |
| Tiamat | mythic | $23.78 | 0.02 |
| Sheoldred, Whispering One | mythic | $23.28 | 0.02 |
| Aetherflux Reservoir | mythic | $22.39 | 0.15 |
| Unwinding Clock | rare | $21.61 | 0.08 |
| Urza's Workshop | rare | $20.11 | 0.08 |
| Hall of the Bandit Lord | rare | $19.62 | 0.02 |
| Elvish Champion | rare | $19.42 | 0.02 |
| Myrel, Shield of Argive | mythic | $19.23 | 0.24 |
| Unwinding Clock | rare | $18.62 | 0.29 |
| Thousand-Year Elixir | rare | $18.24 | 0.02 |
| Altar of Dementia | mythic | $18.15 | 0.15 |
| Mesmeric Orb | mythic | $17.66 | 0.04 |
| Mesmeric Orb | mythic | $17.21 | 0.15 |
Sets released around the same time, so you can see how this one stacks up.
