Psyduck

Psyduck (44/95), the Common from Team Magma vs Team Aqua, has an estimated ungraded market price of about $31, typically in the $27–$35 range. Note: 23 other cards named Psyduck exist across the sets Riffle tracks, at very different values; check the collector number.

This page covers Psyduck (44/95), the Common (about $27–$35) from Team Magma vs Team Aqua.

The other versions: #104/147 from Aquapolis (Common, about $175–$230); #226/217 from Ascended Heroes (Illustration rare, about $60–$80); #175/165 from 151 (Illustration rare, about $55–$80); #70/109 from Team Rocket Returns (Common, about $26–$35); #79/105 from Neo Destiny (Common, about $26–$34); #87/127 from Platinum (Common, about $22–$29); #73/100 from Sandstorm (Common, about $14–$19); #32/149 from Boundaries Crossed (Common, about $14–$19); #74/102 from Triumphant (Common, about $14–$18); #100/132 from Secret Wonders (Common, about $11–$16); #88/110 from Legendary Collection (Common, about $9–$12); #33/149 from Boundaries Crossed (Common, about $6–$8); #40/236 from Cosmic Eclipse (Common, about $2–$4); #53/62 from Fossil (Common, about $2–$3); #65/82 from Team Rocket (Common, about $2–$3); #16/122 from BREAKpoint (Common, about about $1); #26/181 from Team Up (Common, about $0.80–$1); #28/149 from Sun & Moon (Common, about $0.80–$1); #11/68 from Hidden Fates (Common, about under $1); #24/203 from Evolving Skies (Common, about under $1); #054/165 from 151 (Common, about under $1); #039/217 from Ascended Heroes (Common, about under $1); #028/189 from Astral Radiance (Common, about under $1).

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