Koffing across sets & languages(56)

• 64 Mario Stadium Best Photo Contest#617269JP—
• ADV Expansion Pack001/055JP$2.09
• BW7: Plasma Gale030/070JP$10.00
• Base Expansion Pack001/128JP$3.80
• Base Set051/102$1.75
• Base Set (Shadowless)051/102$8.06
• CP6: Expansion Pack 20th Anniversary048/087JP$1.70
• Call of Legends60/95$0.80
• Clash of the Blue Sky003/082JP$2.30
• DP4: Moonlit Pursuit#606769JP$2.24
• Delta Species72/113$4.05
• Deoxys62/107$1.57
• Expansion Pack#575580JP—
• Expansion Pack (No Rarity)#577007JP—
• Expedition114/165$5.21
• Great Encounters74/106$1.74
• HeartGold SoulSilver70/123$0.55
• Hidden Fates28/68$0.14
• Holon Research Tower005/086JP$2.99
• Intro Pack (Bulbasaur)39JP$52.32
• Intro Pack Neo (Chikorita)10JP$2.39
• L1: HeartGold Collection035/070JP$4.11
• L1: HeartGold Collection035/070JP—
• Plasma Storm56/135$0.90
• Plasma Storm57/135$0.75
• Pt2: Bonds to the End of Time044/090JP$8.00
• Rising Rivals68/111$0.99
• Rocket Gang#575725JP$2.55
• Rocket Gang Strikes Back004/084JP$3.38
• Ruby and Sapphire54/109$1.50
• S2: Rebellion Crash063/096JP$0.25
• S4a: Shiny Star V104/190JP$1.99
• S4a: Shiny Star V104/190JP—
• S4a: Shiny Star V275/190JP$4.86
• S6K: Jet-Black Spirit044/070JP$1.00
• SM - Cosmic Eclipse243/236$38.19
• SM - Cosmic Eclipse76/236$0.21
• SM - Unbroken Bonds73/214$0.26
• SM10: Double Blaze034/095JP$1.97
• SM10b: Sky Legend027/054JP$2.06
• SM11b: Dream League021/049JP$1.99
• SM11b: Dream League056/049JP$26.19
• SV09: Journey Together091/159$0.30
• SV9: Battle Partners056/100JP$1.50
• SWSH02: Rebel Clash112/192$0.15
• SWSH06: Chilling Reign094/198$0.09
• SWSH: Crown Zenith075/159$0.19
• Shining Fates041/072$0.56
• Shining Fates: Shiny VaultSV076/SV122$14.22
• Team Plasma's Powered Half Deck002/017JP—
• Team Rocket58/82$1.69
• Team Rocket Returns61/109$1.29
• Vending Machine cards Series 2 (Red)#617479JP—
• XY - Evolutions50/108$0.23
• XY - Fates Collide27/124$0.40
• XY10: Awakening Psychic King025/078JP$3.99

Same name, other languages or different rules text. Same-language reprints already sit in Printings above.