Release year for Steam Siege is 2016. Series classification for this set is XY.
With 116 listed cards, this is a mid-size set by modern TCG standards. As of 2026, the set is 10 years old and now falls into an established back-catalog period.
In the Steam Siege checklist, Professor Sycamore occupies position #114 as a Rare Ultra card.
Professor Sycamore appears in Steam Siege, released in 2016. Its card type is Trainer.
The rarity label is Rare Ultra. This gives collectors a clear identity footprint for the print.
This print is categorized under the Supporter subtype. Card rules text: Discard your hand and draw 7 cards.
You may play only 1 Supporter card during your turn (before your attack). No explicit attack names are available in the loaded card metadata.
For Professor Sycamore in Steam Siege, the current reference price is $8.19. Its 7-day movement is largely flat at +1.0%.
It is currently 3.3% below the 30-day average of $8.47. Its 90-day trading band runs between $8.11 and $9.46, producing a 16% range and low-volatility behavior.
The listed rarity for this print is Rare Ultra.
A wider Professor checklist helps contextualize this specific Professor Sycamore print. This comparison sample includes 4 alternatives across 3 sets.
In this sample, pricing ranges between $0.21 and $0.25 (19% total span). Relative to the alternative average ($0.23), this card is +3410%.
Notable alternatives include Professor Sycamore #107a (BREAKpoint), Professor Sycamore #107 (BREAKpoint) at $0.24, Professor Sycamore #101 (Phantom Forces) at $0.21, and Professor Sycamore #122 (XY) at $0.25.
Pricing context for collectors: We observe a +1.0% shift this week, which points toward price consolidation rather than immediate volatility. Observed 90-day bounds of $8.11 and $9.46 create a 16% band, matching a low-volatility profile.
Versus the 30-day average ($8.47), the card is trading 3.3% lower. Condition sensitivity is substantial: PSA 10 carries a +1135% premium over raw value.
PSA 9 is currently around $20.12, while PSA 10 is $101.11.
