Serperior is card #6 of 88 in Perfect Order (2026), a Rare. In a Perfect Order booster it turns up about once every 15 packs. It is one of 18 Serperior cards printed so far.
2011BW Black Star Promos
2012Dragons Exalted
2013Legendary Treasures
2016Fates Collide
2022Silver Tempest
2025Black Bolt
2026Perfect Order

















See the full Perfect Order card list
It is a Rare, and it shows up about once every 15 Perfect Order packs.
Yes, as a digital simulator. Holobrook lets you open Perfect Order 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.