Mega Rayquaza ex is card #141 of 103 in Delta Reign (2026), a Mega Hyper Rare. At about $450 it is the #1 most valuable card in the set. In a Delta Reign booster it turns up about once every 1,000 packs. It is one of 63 Rayquaza cards printed so far.
2003Nintendo Black Star Promos
2006Holon Phantoms
2008Legends Awakened
2011Call of Legends
2015Ancient Origins
2019SWSH Black Star Promos
2021Evolving Skies
2026Delta Reign

















See the full Delta Reign card list
An ungraded Mega Rayquaza ex from Delta Reign sells for about $450. A PSA 10 is worth more, roughly $1,575 by our estimate, and a PSA 9 around $900.
It is a Mega Hyper Rare, and it shows up about once every 1,000 Delta Reign packs.
Yes, as a digital simulator. Holobrook lets you open Delta Reign booster packs in your browser with our own early estimates of its pull rates (it is too new for real ones) and keep what you pull in a digital binder. No real cards, nothing to buy.