Your search for "swamp 28" revealed the following:
Swamp (BFZ) (#260) from Battle for Zendikar, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Noah Bradley
Swamp (294) (CM2) from Commander Anthology Volume II, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rebecca Guay
Swamp (347) (Foil) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rob Alexander
Swamp (292) (Foil) (LRW) from Lorwyn, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Wayne Reynolds
Swamp (397) (Foil) (LCI) from The Lost Caverns of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Logan Feliciano
Swamp (UST) from Unstable, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Swamp (342) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Larry Elmore
Swamp (342) (Foil) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Terry Springer
Swamp (341) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Douglas Shuler
Swamp (339) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (407) - Retro Frame (Foil) (DMR) from Dominaria Remastered, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Romas Kukalis
Swamp (273) - Eternal Night Showcase (Foil) (MID) from Innistrad: Midnight Hunt, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Dan Mumford
Swamp (264) (CLU) from Ravnica: Clue Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Christopher Moeller
Swamp (271) (XLN) from Ixalan, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Min Yum
Swamp (277) (Foil) (FDN) from Foundations, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rebecca Guay
Swamp (271) (M20) from Core Set 2020, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (295) (C19) from Commander 2019, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (276) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sergey Glushakov
Swamp (277) (FDN) from Foundations, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rebecca Guay
Swamp (791) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sam Burley
Swamp (339) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Bob Eggleton
Swamp (574) (Surge Foil) (FIN) from Final Fantasy, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Domenico Cava
Swamp (340) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (279) (Foil) (MOM) from March of the Machine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sam Burley
Swamp (342) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Terry Springer
Swamp (258) (Foil) (WAR) from War of the Spark, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Richard Wright
Swamp (344) (C16) from Commander 2016, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mark Poole
Swamp (277) (Foil) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Leon Tukker
Swamp - Tower Full Art (389) (FRA) from Reality Fracture, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Daniel Romanovsky
Swamp (257) (Foil) (KLD) from Kaladesh, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Adam Paquette
Swamp (258) (Foil) (DTK) from Dragons of Tarkir, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Adam Paquette
Swamp (341) (Foil) (ODY) from Odyssey, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rob Alexander
Swamp (299) (CM2) from Commander Anthology Volume II, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Swamp (239) [Full Art] (Foil) (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jung Park
Swamp (346) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. J. Cleland-Hura
Swamp (196) (Foil) (SPM) from Marvel's Spider-Man, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jonas De Ro
Swamp (270) (M19) from Core Set 2019, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Cliff Childs
Swamp (262) (CLU) from Ravnica: Clue Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Florian de Gesincourt
Swamp (291) (SHM) from Shadowmoor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Warren Mahy
Swamp (343) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (291) (Foil) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Eugene Maslovski
Swamp - Spellcraft Showcase (269) (Foil) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Joshua Raphael
Swamp (241) [Full Art] (Foil) (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Vincent Proce
Swamp (258) (Foil) (ELD) from Throne of Eldraine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Paul Scott Canavan
Swamp (341) (Foil) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Dan Frazier
Swamp (290) (Foil) (TSP) from Time Spiral, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: John Avon
Swamp (272) - Eternal Night Showcase (Foil) (MID) from Innistrad: Midnight Hunt, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alayna Danner
Swamp (340) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Doug Chaffee
Swamp (292) (SHM) from Shadowmoor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: rk post
Swamp (348) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Larry Elmore