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Cornerstone

Type
Site
Rarity
Exceptional
Element
None
Cost
—
Threshold
—
Power
—
Defense
—

Type line

An Exceptional Site and fundament of the firmament

Rules

You may play this site to one of your corners.

Prices and history

Quote snapshot: UTC. Archive through: 2026-10-18.

Non-foil · lowest listing

$0.29

Market value $0.48· listed 40% below market

Latest archived market observation: .

7d
+0.0%
30d
-2.0%
90d
+11.6%
180d
+23.1%
Recorded observations from 2024-02-08 to 2026-10-18. Use the slider below to inspect plotted values. The dotted segment is history older than the shaded window; the dashed segment after the last point marks a gap with no archived observation, not an absence of trades.
Feb '24 · $1.13Oct '26 · $0.48
Buy on TCGplayer →

Foil · lowest listing

$28.00

Market value $21.60· listed 30% above market

Latest archived market observation: .

7d
+0.0%
30d
+19.0%
90d
+18.0%
180d
-1.6%
Recorded observations from 2024-02-08 to 2026-10-18. Use the slider below to inspect plotted values. The dotted segment is history older than the shaded window; the dashed segment after the last point marks a gap with no archived observation, not an absence of trades.
Feb '24 · $29.23Oct '26 · $21.60
Buy on TCGplayer →

Lowest listing and reported market value are separate measures. Market value is derived from sales, not an individual last sale. Archive dates identify observations; gaps or unchanged values do not establish whether trading occurred.

At a glance

Cornerstone ranks #200 of 403 Alpha singles by market value. The non-foil is listed from $0.29, market value $0.48, up 11.6% over the last 90 days, observed market range $0.33–$1.17 (low 2025-10-07, high 2024-03-06). The foil is listed from $28.00, market value $21.60, up 18.0% over the last 90 days, observed market range $18.07–$33.99 (low 2026-07-29, high 2024-06-25).

Other printings of Cornerstone

Same-name printings. USD per finish; shipping excluded.
PrintingNon-foil listingNon-foil marketFoil listingFoil market× vs this
Beta$0.10$0.18$1.47$1.852.7× less

More cards by Margaret Organ-Kean

All 14 cards → · Biography at sorcerytcg.com ↗

Questions

How much is Cornerstone?

Non-foil lowest listing $0.29, market value $0.48. Foil lowest listing $28.00, market value $21.60. Snapshot 2026-10-18.

Has Cornerstone's price gone up or down?

The non-foil market value up 11.6% over the last 90 days, and the foil up 18.0% over the last 90 days.

What is the cheapest printing of Cornerstone?

Beta at $0.10 — the cheapest of 2 tracked printings.

What is the recorded price range for Cornerstone?

Observed market values since 2024-02-08: non-foil $0.33–$1.17; foil $18.07–$33.99.

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