Rapidash is card #17 of 114 in Steam Siege (2016), a Uncommon illustrated by Yukiko Baba. At about $0.72 it is the #47 most valuable card in the set. In a Steam Siege booster it turns up about once every 9 packs. It is one of 34 Rapidash cards printed so far.
1999Jungle
2003Aquapolis
2005Delta Species
2009Arceus
2014Flashfire
2016Generations
2020Sword & Shield
2022Silver Tempest

















See the full Steam Siege card list
An ungraded Rapidash from Steam Siege sells for about $0.72. A PSA 10 is worth more, roughly $3.60 by our estimate, and a PSA 9 around $1.66.
It is a Uncommon, and it shows up about once every 9 Steam Siege packs.
Yukiko Baba drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Steam Siege 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.