Entei

Entei (28/236), the Rare from Cosmic Eclipse, has an estimated ungraded market price of about $0.85. Note: 15 other cards named Entei exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Entei (28/236), the Rare (about $0.70–$1) from Cosmic Eclipse.

The other versions: #SL3/95 from Call of Legends (Holo Rare, about $250–$330); #6/64 from Neo Revelation (Rare, about $165–$220); #H08/147 from Aquapolis (Holo Rare, about $140–$180); #10/147 from Aquapolis (Rare, about $43–$60); #4/132 from Secret Wonders (Rare Holo, about $35–$46); #17/64 from Neo Revelation (Rare, about $18–$24); #112/91 from Paldean Fates (Shiny rare, about $10–$14); #15/98 from Ancient Origins (Rare, about $9–$12); #47/214 from Lost Thunder (Rare, about $2–$3); #14/98 from Ancient Origins (Rare, about under $1); #20/163 from Battle Styles (Holo Rare, about under $1); #021/159 from Crown Zenith (Holo Rare, about under $1); #19/203 from Evolving Skies (Holo Rare, about under $1); #030/197 from Obsidian Flames (Rare, about under $1); #025/217 from Ascended Heroes (Rare, about under $1).

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

Entei (28/236) is a Rare. PSA has graded 18 copies to date, so graded supply is measurable and growing.