# Riddlemaster Sphinx (Core Set 2020) — resale value

**Riddlemaster Sphinx (Core Set 2020)** is worth about **$0.21**, based on real closed eBay sales.

## Value by tier

| Condition | Value (USD) |
| --- | --- |
| Market | $0.21 |

Values are medians of real closed eBay sales, updated 2026-08-03. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DRiddlemaster%2520Sphinx%2520MTG%2520Core%2520Set%25202020%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DRiddlemaster%2520Sphinx%2520MTG%2520Core%2520Set%25202020%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| Brand | Rare |
| Set | Core Set 2020 |
| Number | #317 |

## Riddlemaster Sphinx (Core Set 2020) value

The Riddlemaster Sphinx from **Core Set 2020** (#317) has a market price of **$0.21**.

### What drives the price

For Magic singles, set, rarity, condition (NM vs played), and playability/format demand drive value. First printings, foils, and cards that see competitive or Commander play hold value best; reprints soften prices.

## FAQ

**What is the current market value for the Riddlemaster Sphinx (Core Set 2020)?**

The current market value for this Rare card (#317) from the Core Set 2020 is $0.17.

**Is the Riddlemaster Sphinx a common or rare card in the set?**

This specific card is listed as a Rare card within the Core Set 2020.

**What is the card number for Riddlemaster Sphinx in this set?**

The Riddlemaster Sphinx is identified by the number #317 in the Core Set 2020.

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Full price guide: https://junkpal.ai/products/riddlemaster-sphinx-core-set-2020-317-mtg
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-08-03, based on real sold listings (junkpal.ai)"