Open Core Set 2021 Collector Booster packs
Rip virtual packs using the set's real card list and real pull rates — then see what the cards inside are actually worth against what a pack costs.
What a Collector Booster is worth
TCGplayer · 2026-10-27Most packs come in under the average — the mean is carried by the rare big hits. The median is what a typical pack looks like; the top 10% of packs are worth $45.45 or more.
What's in a Core Set 2021 Collector Booster?
15 cards · print-sheet odds (MTGJSON)| Slot | Cards | Finish | What can show up |
|---|---|---|---|
| Common Uncommon Showcase 10 cards on the sheet | 2 | Non-foil | 67% common 33% uncommon |
| Extended Art 53 cards on the sheet | 1 | Non-foil | 92% rare 8% mythic |
| Foil All Showcase 36 cards on the sheet | 1 | Foil | 42% common 21% uncommon 19% rare 18% mythic |
| Foil Common Or Basic 126 cards on the sheet | 4 | Foil | 100% common |
| Foil Common Uncommon Showcase 10 cards on the sheet | 1 | Foil | 67% common 33% uncommon |
| Foil Rare Mythic 120 cards on the sheet | 2 | Foil | 89% rare 11% mythic |
| Foil Showcase Basic 5 cards on the sheet | 1 | Foil | 100% common |
| Foil Uncommon 80 cards on the sheet | 2 | Foil | 100% uncommon |
| Rare Mythic Showcase 26 cards on the sheet | 1 | Non-foil | 51% rare 49% mythic |
Most common pack configuration. Rarer variants — a Special Guest or List card replacing a common, a foil basic — are in the odds and show up in the value table below.
Cards that drive the value
Price × chance = what each adds to a pack-
1
Terror of the Peaks+$0.67per pack -
2
Grim Tutor+$0.65per pack -
3
Terror of the Peaks Foil+$0.60per pack
-
4
Terror of the Peaks Foil+$0.58per pack -
5
Heroic Intervention Foil+$0.51per pack -
6
Ugin, the Spirit Dragon+$0.47per pack -
7
Chromatic Orrery+$0.43per pack -
8
Heroic Intervention+$0.42per pack
How these numbers are made
print-sheet odds (MTGJSON) · confidence high. The pack variants and per-card sheet weights compiled from Wizards' collation information, as published by MTGJSON. Sources: magic.wizards.com, www.lethe.xyz, mtg.fandom.com.
WotC: 'Always getting a minimum of four rares or mythic rares, and about 45% of the time, you will get five.' '11 foils (plus the foil double-sided token) and 4 non-foil cards.'
The average is exact — every card's price times how often it appears. Median, the top-10% figure and the hit rate come from 2,000 simulated packs, the same packs every night, so the numbers move only when prices move.
TCGplayer market prices as of 2026-10-27, foil price for foil slots. Market price is not what you would get selling — subtract fees and shipping. Colour balancing of common sheets is not modelled.