Your search for "swamp 48" revealed the following:
Swamp (268) (IKO) from Ikoria: Lair of Behemoths, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Svetlin Velinov
Swamp (UNH) from Unhinged, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Swamp (055) (JMP) from Jumpstart, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Piotr Dura
Swamp (240) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp - Spellcraft Showcase (269) (Foil) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Joshua Raphael
Swamp (171) (NPH) from New Phyrexia, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Lars Grant-West
Swamp (241) (M12) from Magic 2012, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alan Pollack
Swamp (298) (Foil) (CHK) from Champions of Kamigawa, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jim Nelson
Swamp (345) (C16) from Commander 2016, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kev Walker
Swamp - Spellcraft Showcase (269) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Joshua Raphael
Swamp (099) (E01) from Archenemy: Nicol Bolas, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Christine Choi
Swamp (104) (DPA) from Duels of the Planeswalkers, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jim Pavelec
Swamp (321) (PIP) from Fallout, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Samuele Bandini
Swamp (js339) (WC99) (Jakub Šlemr) from World Championship Decks 1999, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon Card Text:T: Add B to your mana pool.Not a Tournament Legal card.
Swamp (Planeswalker Deck) (Foil) (GRN) from Guilds of Ravnica, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Richard Wright
Swamp - Dragon's Eye Full Art (289) (Foil) (TDM) from Tarkir: Dragonstorm, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ron Spencer
Swamp (340) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rob Alexander
Swamp (241) (Foil) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Andreas Rocha
Swamp (397) (Foil) (LCI) from The Lost Caverns of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Logan Feliciano
Swamp (266) (Foil) (M21) from Core Set 2021, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Mike Bierek
Swamp (105) - Happy Little Gathering (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Bob Ross Card Text: Happy Little Gathering(T: Add B.)
Swamp (1192) - Post Malone: The Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Ron Spears & Post Malone Card Text: Secret Lair × Post Malone: The Lands
Swamp (342) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ron Spencer
Swamp (143) (ARC) from Archenemy, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Susan Van Camp
Swamp (264) (RTR) from Return to Ravnica, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Swamp (322) (PIP) from Fallout, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Nikola Matkovic
Swamp (339) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ron Spencer
Swamp (1470) - Pixel Lands 02.jpg (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jubilee Card Text: Pixel Lands 02.jpg
Swamp (145) (PCA) from Planechase Anthology, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jim Nelson
Swamp (282) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sylvia Liu
Swamp (342) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (341) (TMP) from Tempest, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Brom Card Text:T: Add B to your mana pool.
Swamp (295) (CM2) from Commander Anthology Volume II, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp - Full Art (Foil) (UND) from Unsanctioned, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Adam Paquette
Swamp (361) - The Dracula Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jonas De Ro Card Text: The Dracula Lands(T: Add B.)
Swamp (241) (Foil) (M12) from Magic 2012, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alan Pollack
Swamp (040) (DDN) from Duel Decks: Speed vs. Cunning, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (241) [Full Art] (Foil) (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Vincent Proce
Swamp - Full Art (AKH) from Amonkhet, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Clint Cearley
Swamp (339) (Foil) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Tony Szczudlo
Swamp (341) (Foil) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Rob Alexander
Swamp (290) (TSP) from Time Spiral, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Swamp (241) (M10) from Magic 2010, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alan Pollack
Swamp (285) (Foil) (FRA) from Reality Fracture, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Josu Solano
Swamp (266) (Foil) (SNC) from Streets of New Capenna, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Christian Dimitrov
Swamp (342) (Foil) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Terry Springer
Swamp (267) (SNC) from Streets of New Capenna, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Adam Paquette
Swamp (277) (Foil) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Leon Tukker
Swamp (240) (Foil) (M11) from Magic 2011, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alex Horley-Orlandelli
Swamp (342) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Piotr Dura