Hidden Arsenal 7: Knight of Stars
135 cards at daily TCGplayer market prices · as of Sep 3, 2026
Activity
Constellar Ptolemy M7 (1st Edition) made the set's biggest move, +141% to $13.37. 17 cards broke away from the set's shared move over the 28-day window, in the typical range for Yu-Gi-Oh! sets (12.6 per 100 cards vs. a 23.8 median). 11 moved up, 6 moved down.
Most valuable printings
TCGplayer market price · Sep 3, 2026
Highest current market prices across this set's printings. Tap a card to view it on TCGplayer (affiliate).
How Yu-Gi-Oh! sets usually behave
Value concentrates hard: across 481 measured Yu-Gi-Oh! sets, the single top card typically holds about 13% of a set's total card value.
New Yu-Gi-Oh! sets have typically settled about 47% below their release-week price, with most of that easing done within roughly 13 weeks (measured across 49 recent releases).
Over the first 30 weeks after release, that easing runs about 28% deeper than the market's own drift.
Across 71,958 measured breakaway moves in our archive, upward moves outnumber drops about 1.5 to 1.
Named moves in this set
The set's largest single-card departures from its own shared move, across the tracked archive (since Feb 2024).
- +141%
Constellar Ptolemy M7 (1st Edition)to $13.37 Jul 29, 2024 - +124%
Evilswarm Ophion (1st Edition)to $8.38 Aug 24, 2026 - -50%
Lavalval Chain (Unlimited)to $9.98 Apr 7, 2025 - +93%
Evilswarm Ouroboros (1st Edition)to $10.15 Dec 23, 2024 - -47%
Sophia, Goddess of Rebirth (1st Edition)to $5.26 May 18, 2026 - +67%
Gishki Zielgigas (Unlimited)one active weekto $6.27 Aug 5, 2024 - -39%Evilswarm Ouroboros (Unlimited)one active weekto $4.75 Apr 13, 2026
- +54%
Daigusto Emeral (1st Edition)to $10.43 Sep 16, 2024 - -35%Daigusto Emeral (Unlimited)to $5.15 Nov 24, 2025
- +47%Lavalval Chain (1st Edition)to $17.94 Sep 16, 2024
- +46%
Constellar Pleiades (1st Edition)to $5.31 Sep 30, 2024 - +36%
Evilswarm Nightmare (1st Edition)to $4.48 Jun 9, 2025
“One active week” means the daily market price changed in only one week of the move window. A single-week jump on an otherwise flat quote can be a stale price rather than a sustained move.
More Yu-Gi-Oh! sets
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Source: daily TCGplayer market prices. Sets with live listing pages carry those separately, this page never mixes the two.