Grindstone
MTG · Judge Promos · P · 2
Released 2026-07-29
$20.95
30-day forecast: $20.84
Live MTG price tracking, buyout detection, and price predictions for Grindstone on TCG Collector Tools.
Prices Across Marketplaces
TCGplayer (market)
$20.95
TCGplayer (mid)
$25.99
TCGplayer (low)
$20.95
Price Forecast
| Horizon | Forecast | vs Today |
|---|---|---|
| 7 days (stable) | $20.82 | -0.6% |
| 30 days (stable) | $20.84 | -0.5% |
| 90 days | $19.04 | -9.1% |
| 180 days | $19.04 | -9.1% |
| 1 year | $19.04 | -9.1% |
Confidence: Crystal Ball · Calibrated 30-day range $18.62–$23.06 · presale card · veryLow volatility
Our Forecast Track Record
What we predicted for this card, and what actually happened. We publish misses as well as hits. Anchored 2026-04-09 · at $13.19 · 112 days ago.
| Horizon | We predicted | Actual | Error |
|---|---|---|---|
| Day 7 | $13.51 | $9.00 | -33.4% |
| Day 30 | $15.04 | $12.00 | -20.2% |
| Day 90 | $17.92 | $18.94 | +5.7% |
Signal Analysis
HOLD
Conviction 50/100 · Target $20.84 · Range $18.76–$22.92 · over 30d
Mixed signals. Monitor for clearer direction.
Recent Price History
$19.92
$19.92
$19.92
$19.92
$19.92
$20.95
$20.95
Frequently Asked Questions
How much is Grindstone worth?
Grindstone is currently $20.95 on TCGplayer for the Judge Promos printing. Prices update daily from live marketplace data.
Is Grindstone going up or down in price?
Our 30-day forecast for Grindstone is $20.84, with a stable trend (data confidence: Crystal Ball).