Unholy Grotto Onslaught #327 (Foil)
Unholy Grotto is a Rare Magic: The Gathering card from Onslaught (#327), illustrated by John Avon. Its current blended market value is $58.00 ungraded. Prices update from real market data.
We don't have a graded price for this card yet — there aren't enough verified graded sales to publish one we'd trust. A grade only appears here once enough real sold results back it. See the raw (ungraded) estimate above in the meantime.
What this price is based on
Medium confidence4 sales in 90 days — enough for a guide, not a guarantee.
Recent Raw sales
- Jul 27, 2026eBay — ***FOIL Unholy Grotto*** MTG Onslaught Magic Kid Icarus$53.00
- Jul 8, 2026eBay — Magic The Gathering MTG UNHOLY GROTTO Onslaught Foil Card!$26.00
- Jun 6, 2026eBay — Unholy Grotto - Foil - NM - Onslaught MTG Magic The GatheringNM$57.99
- May 24, 2026eBay — Foil Unholy Grotto - Onslaught (ONS) - NM- - MtG MagicNM$23.30
From 4 completed sales recorded between May 24, 2026 and Jul 27, 2026. Sold prices only — asking prices are never counted.
Grade it or not
Not enough graded evidence yet — 0 graded sales recorded.
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Price history · raw near-mint
Card details
- Set
- Onslaught
- Number
- #327
- Rarity
- Rare
- Illustrator
- John Avon
More from Onslaught
Where to buy & check prices
Frequently asked questions
How much is Unholy Grotto worth?
Unholy Grotto (Onslaught #327) is worth around $58.00 ungraded, based on live Magic: The Gathering market data.
Where can I buy Unholy Grotto?
You can buy Unholy Grotto on TCGplayer, Cardmarket and eBay — see the live listings on this page. Always compare against the blended market value first.
What rarity is Unholy Grotto?
Unholy Grotto is a Rare Magic: The Gathering card from the Onslaught set, illustrated by John Avon.
Cite & embed this card
Free to use with attribution to CardTrack.
Unholy Grotto (Onslaught #327) — Magic: The Gathering market value $58.00. Source: CardTrack, https://cardtrack.com/magic/card/onslaught/unholy-grotto-327<iframe src="https://cardtrack.com/embed/card?id=ONS-327" width="100%" height="160" style="border:0;max-width:460px" title="Unholy Grotto price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>