Hydreigon

Hydreigon (98/124), the Rare from Dragons Exalted, has an estimated ungraded market price of about $0.85. Note: 12 other cards named Hydreigon exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Hydreigon (98/124), the Rare (about $0.70–$1) from Dragons Exalted.

The other versions: #103/99 from Next Destinies (Secret Rare, about $125–$170); #99/113 from Legendary Treasures (Rare, about $11–$15); #79/101 from Noble Victories (Rare, about $10–$13); #78/116 from Plasma Freeze (Rare, about $8–$10); #97/124 from Dragons Exalted (Rare, about $4–$6); #74/119 from Phantom Forces (Rare, about $1–$2); #33/70 from Dragon Majesty (Rare, about under $1); #86/114 from Steam Siege (Rare, about under $1); #115/203 from Evolving Skies (Holo Rare, about under $1); #110/189 from Darkness Ablaze (Rare, about under $1); #62/111 from Crimson Invasion (Rare, about under $1); #140/193 from Paldea Evolved (Rare, about under $1).

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

Hydreigon (98/124) is a Rare. PSA has graded 18 copies to date, so graded supply is measurable and growing.