REVISED EDITION · 3ED #173
Rock Hydra 3ED #173
Creature — Hydra
Reserved ListStronger seller depthMarketplaces do not agree
Exact Print Market
Current read
Representative price$4.41NeoPriceConfidenceModeratePricing ConfidenceFinish coverageNonfoil onlyRepresentativeWhat changed-4.8%7-day price movementInventory338Print-level inventorySellers86Print-level sellersUpdatedJul 26, 2026Current
Check firstMarketplaces do not agree, so this price is harder to trust until listings and recent sales line up.
This creature enters with X +1/+1 counters on it. For each 1 damage that would be dealt to this creature, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage. {R}: Prevent the next 1 damage that would be dealt to this creature this turn. {R}{R}{R}: Put a +1/+1 counter on this creature. Activate only during your upkeep.
Marketplace Comparison
Compare source coverage
| Source | Price | Coverage | Updated | Action |
|---|---|---|---|---|
| NeoPriceNeoCardAlpha market reference | $4.41 | Representative print price | Jul 26, 2026 | Shown here |
| TCGplayer Market PricePricing source | $3.67 | Market price or search result | Not tracked | Open TCGplayer |
| CardTraderInventory source | $5.15 | Nonfoil print | Jul 26, 2026 | Open CardTrader |
| Card KingdomValidation only | $2.29 | Retail validation only | Not tracked | Open Card Kingdom |
Marketplace prices may represent different finish or condition coverage. Check the source listing before comparing.
Source prices are 10.51x apart.
Market Read
What changed
What changed
- Representative price declined 4.8% over seven days.
- Print-level inventory was roughly flat over seven days.
- Marketplaces do not agree for this print.
- 86 tracked sellers for this print.
Why this matters
Price comparison is the main check here: source prices are far enough apart that exact version, condition, and live listings matter before trusting the displayed market read.
What to verify
- exact printing and collector number
- current marketplace listing
- condition bucket
- whether marketplaces agree today
- whether the representative price matches the copy being compared
Supply
Supply and condition coverage
Total print inventory338Deep
Listings155Active print-level listings
Sellers86Deep
NM inventory22Near Mint
LP/SP inventory80Lightly/Slightly Played
MP/HP inventory237Moderately/Heavily Played
NM, LP/SP, and MP/HP tracked. Seller and listing counts are tracked for the print overall, not separately by finish or condition.
Other Printings
Compare versions
Precomputed Matches
Similar Cards
104
Roc of Kher Ridges
ReservedCreature — Bird
104
Two-Headed Giant of Foriys
ReservedCreature — Giant
98
Gwendlyn Di Corci
ReservedLegendary Creature — Human Rogue
96
Veteran Bodyguard
ReservedCreature — Human
96
Demonic Hordes
ReservedCreature — Demon
95
Vesuvan Doppelganger
ReservedCreature — Shapeshifter
94
Khabál Ghoul
ReservedCreature — Zombie
94
Ma Chao, Western Warrior
Legendary Creature — Human Soldier Warrior
Detailed metricsOpen
| Listings | 155 | Tracked active listings |
|---|---|---|
| Vendors | 86 | Distinct tracked sellers |
| Liquidity Score | 85.0 | Deep | 2563% spread |
| Liquidity Tier | Deep | 2563% spread |
| Spread | 2563% spread | Stable |
| Market Sensitivity | Low Sensitivity (16/100) | How easily this market could move if pressure increases |
| Inventory Trend | -0.3% | 24h -0.3% | 7d -0.9% |
| NeoScore | 46 | D Tier |
| Organic Demand | 48 | Weak organic demand |
Sources, methodology, and disclosureOpen
NeoPrice and Pricing Confidence use the existing NeoCardAlpha methodology. CardTrader is the inventory source, TCGplayer is the primary pricing source, and Card Kingdom is validation-only.
NeoCardAlpha may earn a commission from certain marketplace links.
Card Kingdom retail validation is visible when a matching product is available, but it remains a validation source.