Rotom is card #20 of 90 in HS—Undaunted (2010), a Rare illustrated by Mahou. At about $28.50 it is the #29 most valuable card in the set. In a HS—Undaunted booster it turns up about once every 27 packs. It is one of 53 Rotom cards printed so far.
2008Great Encounters
2010HS—Undaunted
2015Ancient Origins
2017SM Black Star Promos
2019Cosmic Eclipse
2022Lost Origin
2024Surging Sparks
2026Delta Reign

















See the full HS—Undaunted card list
An ungraded Rotom from HS—Undaunted sells for about $28.50. A PSA 10 is worth more, roughly $228 by our estimate, and a PSA 9 around $79.80.
It is a Rare, and it shows up about once every 27 HS—Undaunted packs.
Mahou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open HS—Undaunted booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.