Your search for "swamp 343" revealed the following:
Swamp - Full Art (282) (Foil) (BRO) from The Brothers' War, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sergey Glushakov
Swamp (314) (TRK) from Star Trek, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Pablo Mendoza
Swamp (273) (Foil) (BRO) from The Brothers' War, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Robin Olausson
Swamp (297) - Full Art (Foil) (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Maiko Aoji Card Text:T: Add B.
Swamp (370) (Foil) (STX) from Strixhaven: School of Mages, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Titus Lunter Card Text:T: Add B.
Swamp (371) (Foil) (STX) from Strixhaven: School of Mages, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Adam Paquette Card Text:T: Add B.
Swamp (240) (THS) from Theros, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Adam Paquette
Swamp (346) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. J. Cleland-Hura
Swamp (298) - Full Art (Foil) (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Shie Nanahara Card Text:T: Add B.
Swamp (034) (DDE) from Duel Decks: Phyrexia vs. the Coalition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Ron Spencer
Swamp (374) (ICE) from Ice Age, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Douglas Shuler Card Text:[B]
Swamp (341) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (273) - Eternal Night Showcase (MID) from Innistrad: Midnight Hunt, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dan Mumford
Swamp (347) (Foil) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rob Alexander
Swamp (313) (Surge Foil) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Andrey Nyarl
Swamp (314) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kamila Szutenberg
Swamp (342) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Larry Elmore
Swamp (238) (AVR) from Avacyn Restored, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (293) (TSP) from Time Spiral, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Swamp (340) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Doug Chaffee
Swamp (274) (Foil) (OTJ) from Outlaws of Thunder Junction, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Salvatorre Zee Yazzie
Swamp (341) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (298) (3ED) from Revised Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dan Frazier Card Text:T: Add B to your mana pool.
Swamp (342) (USG) from Urza's Saga, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon Card Text:T: Add B to your mana pool.
Swamp (241) (M13) from Magic 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (083) (BTD) from Beatdown Box Set, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (292) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Oliver Wetter
Swamp (304) (ACR) from Assassin's Creed, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Wangjie Li
Swamp (292) - Retro Frame (INR) from Innistrad Remastered, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (340) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (339) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Bob Eggleton
Swamp (370) (STX) from Strixhaven: School of Mages, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Titus Lunter Card Text:T: Add B.
Swamp (792) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sam Burley
Swamp (282) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sylvia Liu
Swamp (193) (TMT) from Teenage Mutant Ninja Turtles, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: BEMOCS
Swamp (342) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Piotr Dura
Swamp (142) (ARC) from Archenemy, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Susan Van Camp
Swamp (384) - The Astrology Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jeanne D'Angelo Card Text: Zodiac Lands(T: Add B.)
Swamp (104) (J22) from Jumpstart 2022, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mike Bierek
Swamp (339) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jeff Easley
Swamp (342) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (791) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sam Burley
Swamp (341) (ODY) from Odyssey, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (BFZ) (#263) from Battle for Zendikar, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (294) (CM2) from Commander Anthology Volume II, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rebecca Guay
Swamp (340) (Foil) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: John Avon
Swamp (322) (TRK) from Star Trek, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Leon Tukker
Swamp (299) (CMA) from Commander Anthology, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (314) (Foil) (MH3) from Modern Horizons 3, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: David Álvarez
Swamp (341) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro