Probopass

Probopass (55/114), the Rare from Steam Siege, has an estimated ungraded market price of about $0.30. Note: 15 other cards named Probopass exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Probopass (55/114), the Rare (about under $1) from Steam Siege.

The other versions: #13/146 from Legends Awakened (Rare Holo, about $6–$8); #182/167 from Twilight Masquerade (Illustration rare, about $4–$6); #7/99 from Arceus (Holo Rare, about $1–$2); #096/88 from Perfect Order (Illustration rare, about $0.90–$1); #60/127 from Platinum (Uncommon, about under $1); #82/124 from Dragons Exalted (Rare, about under $1); #95/160 from Primal Clash (Rare, about under $1); #86/145 from Guardians Rising (Rare, about under $1); #141/236 from Cosmic Eclipse (Uncommon, about under $1); #099/172 from Brilliant Stars (Uncommon, about under $1); #131/192 from Rebel Clash (Rare, about under $1); #146/197 from Obsidian Flames (Uncommon, about under $1); #038/88 from Perfect Order (Common, about under $1); #098/182 from Destined Rivals (Uncommon, about under $1); #102/167 from Twilight Masquerade (Uncommon, about under $1).

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

Probopass (55/114) is a Rare. PSA has graded 2 copies to date, so graded supply is measurable and growing.