Raw, it’s a $2.50 card. Slabbed as a PSA 9 it sells for 20× that.
| June · 2 sales · median $65 · +62% vs Apr | ||||
| 16 | eBay | 2016 Pokemon XY Black Star Promo #XY139 Floette Holo PSA 9 Mint #XY139 | +60% | $80 |
| 14 | eBay | 2016 Pokemon XY Black Star Promo #XY139 Floette Holo PSA 9 Mint #XY139 | +25% | $50 |
| April · 1 sale · median $40 · +12% vs Feb | ||||
| 20 | eBay | 2016 Pokemon XY Black Star Promo #XY139 Floette Holo PSA 9 Mint New Cert REGRADE #XY139 | +86% | $40 |
| February · 2 sales · median $36 · +291% vs Nov | ||||
| 13 | eBay | 2016 POKEMON XY BLACK STAR PROMO STEAM SIEGE BLISTERS #XY139 FLOETTE-HOLO PSA 9 #XY139 | −57% | $22 |
| 2 | eBay | 2016 POKEMON XY BLACK STAR PROMO STEAM SIEGE BLISTERS #XY139 FLOETTE-HOLO PSA 9 #XY139 | +447% | $50 |
| November 2025 · 1 sale · median $9 · +84% vs Mar | ||||
| 28 | eBay | 2016 POKEMON XY BLACK STAR PROMO #XY139 FLOETTE HOLO STEAM SEIGE PSA 9 #XY139 | +84% | $9 |
| March 2024 · 1 sale · median $5 · −45% vs Dec | ||||
| 10 | eBay | PSA 9 MINT Floette XY139 STEAM SIEGE BLACK STAR PROMO HOLO Pokemon Card INV191 #139 | −45% | $5 |
| December 2022 · 1 sale · median $9 | ||||
| 23 | eBay | 2016 FLOETTE Pokemon XY Black Star Promo #XY139 HOLO PSA 9 mint! | — | $9 |