Professor Sycamore (STS 114/114)
Professor Sycamore (STS 114/114) has a market price of $11.69 as of September 1, 2026. Live market price, daily price history, and what this card has actually been selling for. Ultra Rare from XY — Steam Siege.
Sellers are asking $11.69. What Professor Sycamore has actually been selling for is built on 66 completed sales.
The market price is what sellers are asking. Dex Fair is what the card actually sold for, built from real completed sales — the two are often a long way apart.
Every completed sale Dexcatch can verify for Professor Sycamore — what each one ended at, and how far it sat from what the card really sells for.
See the sale pricesFree account · no card neededMost of these are completed sales; a few listings end without selling. Card condition is whatever the seller wrote, which is why prices for the same card can sit far apart.
How Dex Fair is built — Professor Sycamore
Dex Fair is what this card actually sells for. It is more than a sales average: it weighs real completed sales of Professor Sycamore and its closest comparables, throws out sales that don't belong — graded slabs, one-off outliers — adjusts everything to Near Mint, and cross-checks the result against the wider market.
That is a different question from the one a price guide answers. A guide reports what copies are listed at; Dex Fair reports what buyers actually paid. On XY — Steam Siege cards the two routinely disagree, and the gap is where a good buy hides.
Every Dex Fair number carries a confidence level and the count of sales behind it, so you can see how much evidence it rests on rather than taking one number on faith. This one rests on 66 completed sales.
Track this card and Dexcatch tells you when a listing lands under that number.
Get alerts on this cardOnly one of these is built from sales that happened. Dexcatch watches every listing against it and tells you when one lands underneath.
Get alerts on this cardAbout Professor Sycamore
How much is Professor Sycamore worth?
As of September 1, 2026, Professor Sycamore (STS 114/114) has a market price of $11.69. That figure comes from TCGplayer market data and is updated daily on Dexcatch.
Is Professor Sycamore going up in value?
Professor Sycamore (STS 114/114) is up 8.3% over the last 7 days and up 6.6% over the last 30 days based on daily market snapshots. Movement is measured against TCGplayer market price, updated daily on Dexcatch.
What set is Professor Sycamore from?
Professor Sycamore is card 114/114 in XY — Steam Siege (STS), part of the xy series. Its rarity is Ultra Rare.
What does Professor Sycamore actually sell for?
The $11.69 market price for Professor Sycamore (STS 114/114) is what sellers are asking, which is not the same as what buyers paid. Dexcatch builds a separate number from real completed eBay sales, adjusted to Near Mint and with graded slabs and one-off outliers removed, so you can see the gap before you buy. It is free to look up.
Who illustrated Professor Sycamore?
Professor Sycamore (STS 114/114) was illustrated by Yusuke Ohmura. It is a Ultra Rare card in XY — Steam Siege.
What a sold price looks like
Professor Sycamore's sold price is hidden above. Here's a real one that isn't — Charizard ex, priced from 30 completed sales rather than from what sellers are asking.
