Ralts is card #139 of 214 in Lost Thunder (2018), a Common illustrated by Yuka Morii. At about $11.81 it is the #49 most valuable card in the set. In a Lost Thunder booster it turns up about once every 10 packs. It is one of 32 Ralts cards printed so far.
2003Ruby & Sapphire
2006Dragon Frontiers
2009Platinum
2013Legendary Treasures
2018Lost Thunder
2021Chilling Reign
2024Paldean Fates
2026Ascended Heroes

















See the full Lost Thunder card list
An ungraded Ralts from Lost Thunder sells for about $11.81. A PSA 10 is worth more, roughly $59.05 by our estimate, and a PSA 9 around $27.16.
It is a Common, and it shows up about once every 10 Lost Thunder packs.
Yuka Morii drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Lost Thunder 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.