Castform is card #105 of 145 in Guardians Rising (2017), a Common illustrated by sui. At about $0.44 it is the #111 most valuable card in the set. In a Guardians Rising booster it turns up about once every 8 packs. It is one of 22 Castform cards printed so far.
2004Hidden Legends
2005Delta Species
2006Holon Phantoms
2008Legends Awakened
2017Guardians Rising
2021Chilling Reign
2022Brilliant Stars
2024Surging Sparks

















See the full Guardians Rising card list
An ungraded Castform from Guardians Rising sells for about $0.44. A PSA 10 is worth more, roughly $2.20 by our estimate, and a PSA 9 around $1.01.
It is a Common, and it shows up about once every 8 Guardians Rising packs.
sui drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Guardians Rising 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.