 Psyduck #088/110Legendary Collection · Reverse Holofoil · 2002 | $775 | $3,467 | $4,552 |
 Psyduck #104/147Aquapolis · Reverse Holofoil · 2003 | $700 | $5,674 | $27,992 |
 Slowpoke & Psyduck GX (Alternate Full Art) #218/236SM - Unified Minds · Holofoil · 2019 | $342 | — | — |
 Psyduck #73/100EX Sandstorm · Reverse Holofoil · 2003 | $298 | $447 | $3,550 |
 Psyduck #44/95EX Team Magma vs Team Aqua · Reverse Holofoil · 2004 | $250 | $460 | $626 |
 Slowpoke & Psyduck GX (Secret) #239/236SM - Unified Minds · Holofoil · 2019 | $223 | $246 | $1,225 |
 Psyduck (Delta Species) #81/110EX Holon Phantoms · Reverse Holofoil · 2006 | $214 | $1,154 | $7,938 |
| Psyduck #104/147Aquapolis · Normal · 2003 | $206 | $600 | $2,791 |
 Slowpoke & Psyduck GX (Full Art) #217/236SM - Unified Minds · Holofoil · 2019 | $152 | — | — |
![Misty's Psyduck [W Stamped] #054/132](/ci/t/166296_200w.jpg) Misty's Psyduck [W Stamped] #054/132WoTC Promo · Normal · 1999 | $152 | — | — |
 Psyduck #87/127Platinum · Reverse Holofoil · 2009 | $150 | — | — |
 Slowpoke & Psyduck GX #35/236SM - Unified Minds · Holofoil · 2019 | $140 | $189 | $823 |
 Psyduck - 28/149 (Build-A-Bear Workshop Exclusive) #028/149Miscellaneous Cards & Products · Normal · 2026 | $110 | — | — |
 Psyduck - 2/12 #002/012McDonald's Promos 2018 · Holofoil · 2018 | $91.58 | $180 | $192 |
 Psyduck #74/102Triumphant · Reverse Holofoil · 2010 | $82.46 | — | — |
 Psyduck #100/132Secret Wonders · Reverse Holofoil · 2007 | $78.65 | $469 | $869 |
 Psyduck #20/53WoTC Promo · Normal · 1999 | $75.74 | $201 | $821 |
 Psyduck #079/105Neo Destiny · 1st Edition · 2002 | $74.12 | $112 | $794 |
 Psyduck (32) #32/149Boundaries Crossed · Reverse Holofoil · 2012 | $66.18 | — | — |
 Psyduck (33) #33/149Boundaries Crossed · Reverse Holofoil · 2012 | $62.04 | $260 | $586 |
 Psyduck #175/165Scarlet & Violet 151 · Holofoil · 2023 | $62.00 | $80.00 | $420 |
 Psyduck #226/217Ascended Heroes · Holofoil · 2026 | $57.34 | $74.53 | $266 |
 Misty's Psyduck #193/182Destined Rivals · Holofoil · 2025 | $57.12 | $72.00 | $380 |
 Psyduck - SM199 (Detective Pikachu Stamped) #SM199SM Promos · Holofoil · 2016 | $38.04 | — | — |
 Misty's Psyduck #054/132Gym Heroes · 1st Edition · 2000 | $33.64 | $52.14 | $1,548 |
 Misty's Psyduck #090/132Gym Challenge · 1st Edition · 2000 | $32.46 | $105 | $680 |
 Psyduck #70/109EX Team Rocket Returns · Normal · 2004 | $31.13 | $92.70 | $849 |
| Psyduck #44/95EX Team Magma vs Team Aqua · Normal · 2004 | $31.05 | $150 | $460 |
| Psyduck #079/105Neo Destiny · Unlimited · 2002 | $29.05 | $83.96 | $510 |
 Psyduck #40/236SM - Cosmic Eclipse · Reverse Holofoil · 2019 | $25.43 | — | — |
| Psyduck #87/127Platinum · Normal · 2009 | $25.31 | $71.72 | $423 |
 Sabrina's Psyduck #099/132Gym Challenge · 1st Edition · 2000 | $25.22 | $63.51 | $635 |
| Psyduck (Delta Species) #81/110EX Holon Phantoms · Normal · 2006 | $18.99 | — | — |
 Psyduck #26/181SM - Team Up · Reverse Holofoil · 2019 | $17.91 | — | — |
| Psyduck (32) #32/149Boundaries Crossed · Normal · 2012 | $17.36 | $60.00 | $194 |
| Psyduck #73/100EX Sandstorm · Normal · 2003 | $17.24 | $35.00 | $461 |
| Psyduck #74/102Triumphant · Normal · 2010 | $16.34 | $55.00 | $174 |
 Psyduck - 039/217 (Cosmos Holo) #039/217Prize Pack Series Cards · Holofoil · 2022 | $14.36 | — | — |
| Psyduck #100/132Secret Wonders · Normal · 2007 | $13.73 | $34.00 | $155 |
 Psyduck #53/62Fossil · 1st Edition · 1999 | $13.60 | $64.00 | $835 |
 Psyduck #16/122XY - BREAKpoint · Reverse Holofoil · 2016 | $13.44 | $90.90 | $700 |
| Misty's Psyduck #054/132Gym Heroes · Unlimited · 2000 | $11.20 | — | — |
| Psyduck #088/110Legendary Collection · Normal · 2002 | $10.23 | — | — |
 Psyduck - SM199 (In-Store Event Promo) #SM199SM Promos · Holofoil · 2016 | $9.84 | — | — |
| Sabrina's Psyduck #099/132Gym Challenge · Unlimited · 2000 | $9.51 | $50.59 | $357 |
 Psyduck #007Mega Evolution Promo · Holofoil · 2025 | $9.25 | — | — |
| Misty's Psyduck #090/132Gym Challenge · Unlimited · 2000 | $7.87 | $34.99 | $450 |
 Psyduck #28/149SM Base Set · Reverse Holofoil · 2017 | $7.33 | — | — |
 Psyduck #65/82Team Rocket · 1st Edition · 2000 | $6.45 | $56.50 | $388 |
| Psyduck (33) #33/149Boundaries Crossed · Normal · 2012 | $6.40 | $57.50 | $87.73 |
 Psyduck #11/68Hidden Fates · Reverse Holofoil · 2019 | $4.69 | — | — |
| Psyduck #40/236SM - Cosmic Eclipse · Normal · 2019 | $2.86 | $23.73 | $174 |
| Psyduck #65/82Team Rocket · Unlimited · 2000 | $2.17 | $20.99 | $135 |
| Psyduck #53/62Fossil · Unlimited · 1999 | $2.08 | — | — |
 Psyduck (Holo Common) #7/18Detective Pikachu · Holofoil · 2019 | $1.47 | — | — |
| Psyduck #26/181SM - Team Up · Normal · 2019 | $1.10 | — | — |
| Psyduck #16/122XY - BREAKpoint · Normal · 2016 | $1.09 | — | — |
 Misty's Psyduck #045/182Destined Rivals · Reverse Holofoil · 2025 | $1.03 | — | — |
 Psyduck #039/217Prize Pack Series Cards · Normal · 2022 | $0.90 | — | — |
| Psyduck #28/149SM Base Set · Normal · 2017 | $0.84 | — | — |
 Psyduck #054/165Scarlet & Violet 151 · Reverse Holofoil · 2023 | $0.70 | $38.86 | $220 |
 Psyduck #028/189Astral Radiance · Reverse Holofoil · 2022 | $0.70 | $21.00 | $34.11 |
 Psyduck #024/203Evolving Skies · Reverse Holofoil · 2021 | $0.70 | — | — |
| Psyduck #11/68Hidden Fates · Normal · 2019 | $0.36 | — | — |
| Psyduck #024/203Evolving Skies · Normal · 2021 | $0.31 | — | — |
 Psyduck #039/217Ascended Heroes · Normal · 2026 | $0.29 | — | — |
| Misty's Psyduck #045/182Destined Rivals · Normal · 2025 | $0.29 | — | — |
| Psyduck #054/165Scarlet & Violet 151 · Normal · 2023 | $0.25 | — | — |
| Psyduck #028/189Astral Radiance · Normal · 2022 | $0.24 | $32.00 | $203 |