Thundurus

Thundurus (033/86), the Rare from Black Bolt, has an estimated ungraded market price of about $0.15. Note: 8 other cards named Thundurus exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Thundurus (033/86), the Rare (about under $1) from Black Bolt.

The other versions: #97/98 from Emerging Powers (Ultra Rare, about $19–$26); #139/91 from Paldean Fates (Shiny rare, about $2–$3); #35/98 from Emerging Powers (Rare, about $2–$3); #50/113 from Legendary Treasures (Rare, about $2–$3); #33/111 from Furious Fists (Rare, about under $1); #52/198 from Chilling Reign (Holo Rare, about under $1); #68/236 from Unified Minds (Uncommon, about under $1); #070/197 from Obsidian Flames (Rare, about under $1).

The collector number printed at the bottom of the card is the reliable way to tell them apart.

It's roughly a wash: with a 50% PSA 10 gem rate and current graded prices, grading a near-mint Thundurus (033/86) is estimated to come out within about $10 of selling it raw (est.); grade for protection or display, not profit.

Assumes ~$25/card bulk-rate grading (standard service costs more); ignores turnaround time, sub-9 grades, and shipping. A screen, not a promise.

Thundurus (033/86) is a Rare. PSA has graded 34 copies to date, so graded supply is measurable and growing.

Of the 34 copies PSA has graded, 50% earned a PSA 10. That's a fairly typical gem rate for a modern card. Grade-by-grade population and pop-over-time appear with Riffle premium.