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MAGIC: THE GATHERING · SET CMB1
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Catalog›Magic: The Gathering›Mystery Booster Playtest Cards 2019
MTG · English · TBD

Mystery Booster Playtest Cards 2019

Magic pages should feel like an illuminated archive: rules-heavy, history-aware, and serious about print treatment — anchored right now by Slivdrazi Monstrosity.

Track completionCompare cardsLive data
Cards tracked121
Variants tracked1
Market floor$0.2
Grail card$59.84
Release dateTBDDestination set page
Set basket$244.99100% price coverage across the set
Chase basket$140.62Top 8 tracked chase cards
Active listings00 new this week
Recent sales00 in the last 7 days
Top chaseSlivdrazi Monstrosity#102 · rare
Set index

A tradeable basket for the whole set.

100% tracked
Complete set basket$244.99121 priced cards roll into the current estimate.
Chase basket$140.62Tracks the highest-signal cards instead of the long tail.
Raw lane basket$2.02Useful for estimating where the body of the set sits today.

Coverage is live on 100% of the set right now, which is enough to show the market center even before the long tail fully fills in.

rare is the dominant rarity band in this release, while Sorcery is the strongest card-family signal on the page today.

Magic collectors want chronology, finish awareness, and context about why a card matters across formats and eras.

Set pulse

Real activity where we have it, honest signals where we do not.

Activity is still forming for this set. The price coverage and chase basket above update as VaultStore listings and sales deepen.
Rarity mix

Where the card count is concentrated.

rare121
Trusted sellers

The best current storefronts touching this lane.

Trusted seller rankings will fill in here as more live listings attach to this set.
Related sets

Continue the chronology.

Secret Lair DropDec 20192,488 cardsGame Night 2019Nov 201964 cardsPonies: The GallopingOct 20193 cardsThrone of EldraineOct 2019398 cards
Temperature index

Heat signal across the full set.

On Fire10
Heating Up57
Cooling20
Top movers

The strongest gainers right now.

Priority AvengerOn Fire$0.55Stack of PaperworkOn Fire$0.42Celestine Cave WitchOn Fire$0.5
Cooling off

Cards losing momentum in the current window.

Five Kids in a TrenchcoatCooling$0.87Sarah's WingsCooling$0.67
Sort
Card numberPrice descPrice ascHeatRecent activityRarityName
Rarity
rare121
Variants
Nonfoil121
Type
Sorcery15Instant10Enchantment6Land6Enchantment — Aura4Artifact3Artifact Creature — Construct2
Completion tracking

Built for real set goals, not generic wishlists.

0%owned

VaultStore completion tracking is designed for any-copy, any-variant, grade-specific, and language-specific goals. This page already knows the full card map; the collector layer sits on top of it.

Sign in to import a collection CSV, auto-claim VaultStore purchases, or manually mark cards as owned.

Track this setImport collection
Collector guide

Why this set matters right now.

Reserved List icons, Commander staples, foils, borderless treatments, and modern premium printings all route through the same browse surface.

Foundations is the cleanest current on-ramp for cataloging modern staples.

Beta and Arabian Nights remain the benchmark history surfaces every serious collectible page gets measured against.

Set overview

A destination page, not just a listing grid.

# Mystery Booster Playtest Cards 2019 Mystery Booster Playtest Cards 2019 represents a unique artifact from Magic: The Gathering's design process, released in 2026 as a retrospective collection of 121 experimental cards that never made it into standard sets. These cards originated from Wizards of the Coast's internal playtesting during 2019, offering collectors and players a rare glimpse into developmental iterations and abandoned mechanical directions. The set holds significant historical value for understanding design philosophy and the evolution of mechanics like Slivers, which received substantial experimental attention. Notable entries including Slivdrazi Monstrosity, Sliv-Mizzet Hivemind, and Banding Sliver showcase ambitious mechanical combinations that pushed creature type synergies beyond their typical boundaries. Cards like Soulmates and Planequake demonstrate experimental approaches to established mechanics. This collection serves primarily as a historical document rather than a competitive resource, appealing to players interested in Magic's design process and the roads not taken during development.

A great Magic catalog page needs to explain finish splits, print treatments, and why the set still matters across formats.

Top cards to collect
Slivdrazi Monstrosity$59.84Soulmates$21.25Sliv-Mizzet, Hivemind$19.57Planequake$15.03Banding Sliver$11.37
FAQ
What makes Mystery Booster Playtest Cards 2019 important for collectors?

Mystery Booster Playtest Cards 2019 sits inside the live magic archive. and matters because it combines set identity, chase hierarchy, and live market behavior in one place.

Animate Spell
Cooling
$0.92
Creature — Elemental
2
Instant // Instant2
World Enchantment2
Temperature
Heating up57Cooling20On fire10
Price
Under $5115$5 to $204$20 to $1002
Reset all filters
Card grid
10 matching cards
100% priced0 live rows87 with heat signalCard number
Rarity: rareTemperature: On fire
#9
Priority Avenger
Priority Avenger
rare1 variants
Creature — Bird Wizard
▲ 12.2%
Market$0.55
SignalOn fire
#13
Stack of Paperwork
Stack of Paperwork
rare1 variants
Enchantment
▲ 16.7%
Market$0.42
SignalOn fire
#37
Celestine Cave Witch
Celestine Cave Witch
rare1 variants
Creature — Human Warlock
▲ 16.3%
Market$0.5
SignalOn fire
#49
Underdark Beholder
Underdark Beholder
rare1 variants
Creature — Beholder
▲ 14.0%
Market$1.55
SignalOn fire
#59
Planequake
Planequake
rare1 variants
Sorcery
▲ 16.6%
Market$15.03
SignalOn fire
#71
Bear with Set's Mechanic
Bear with Set's Mechanic
rare1 variants
Creature — Bear
▲ 12.0%
Market$3.54
SignalOn fire
#73
Experiment Five
Experiment Five
rare1 variants
Creature — Bear Snake Mutant
▲ 15.4%
Market$0.6
SignalOn fire
#99
Sliv-Mizzet, Hivemind
Sliv-Mizzet, Hivemind
rare1 variants
Legendary Creature — Dragon Sliver
▲ 13.9%
Market$19.57
SignalOn fire
#104
Zyym, Mesmeric Lord
Zyym, Mesmeric Lord
rare1 variants
Legendary Creature — Vampire Wizard
▲ 13.8%
Market$0.99
SignalOn fire
#108
Pithing Spyglass
Pithing Spyglass
rare1 variants
Artifact
▲ 14.5%
Market$0.95
SignalOn fire
How many cards are tracked in Mystery Booster Playtest Cards 2019?

VaultStore currently tracks 121 cards on this page, with 1 distinct variant treatments represented across the set.

How is the set index calculated on VaultStore?

The set page uses append-only price observations to estimate both a full-set basket and a chase-card basket, with coverage percentages shown whenever the underlying market is still thin.

Can I track completion for Mystery Booster Playtest Cards 2019?

Yes. Completion tracking is designed to support any-copy, variant-specific, and grade-specific collector goals, with import-first flows for collectors who are not yet buying everything through VaultStore.