Regirock-EX is card #43a of 124 in Fates Collide (2016), a Rare Ultra illustrated by Planeta. In a Fates Collide booster it turns up about once every 235 packs. It is one of 19 Regirock cards printed so far.
2004Hidden Legends
2006Legend Maker
2008Legends Awakened
2015Ancient Origins
2016Fates Collide
2017Crimson Invasion
2020Vivid Voltage
2022Astral Radiance

















See the full Fates Collide card list
It is a Rare Ultra, and it shows up about once every 235 Fates Collide packs.
Planeta drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Fates Collide 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.