Your search for "swamp 81" revealed the following:
Swamp (293) - Retro Frame (INR) from Innistrad Remastered, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kasia 'Kafis' Zielińska
Swamp (272) - Eternal Night Showcase (Foil) (MID) from Innistrad: Midnight Hunt, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alayna Danner
Swamp (276) (Foil) (LTR) from The Lord of the Rings: Tales of Middle-earth, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Deven Rue
Swamp (313) (Surge Foil) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Andrey Nyarl
Swamp (339) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Ron Spencer
Swamp (321) (Foil) (PIP) from Fallout, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Samuele Bandini
Swamp (201) (WHO) from Doctor Who, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Svetlin Velinov
Swamp (339) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ron Spencer
Swamp (291) (Foil) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Eugene Maslovski
Swamp (204) (POR) from Portal, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (312) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Calder Moore
Swamp (342) (Foil) (ODY) from Odyssey, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alan Pollack
Swamp (191) (HOB) from The Hobbit, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Erikas Perl
Swamp (291) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Eugene Maslovski
Swamp (js440) (WC97) (Jakub Šlemr) from World Championship Decks 1997, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Andrew Robinson Card Text:T: Add B to your mana pool.Not a Tournament Legal card.
Swamp (055) (JMP) from Jumpstart, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Piotr Dura
Swamp (339) (Foil) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Tony Szczudlo
Swamp (241) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Andreas Rocha
Swamp (282) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Carlos Palma Cruchaga
Swamp (241) (Foil) (M12) from Magic 2012, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Alan Pollack
Swamp (281) (Foil) (ECL) from Lorwyn Eclipsed, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Raoul Vitale
Swamp (UNH) from Unhinged, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Swamp (371) (4ED) from Fourth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dan Frazier Card Text:T: Add B to your mana pool.
Swamp (js340a) (WC99) (Jakub Šlemr) from World Championship Decks 1999, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Brom Card Text:T: Add B to your mana pool.Not a Tournament Legal card.
Swamp (417) - Shades Not Included (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Ben Schnuck Card Text: Shades Not Included
Swamp (256) (ISD) from Innistrad, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: James Paick
Swamp (255) (Foil) (TMT) from Teenage Mutant Ninja Turtles, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Gaboleps Card Text:Preorder Notice – Non-Foil Version Ships 3/27/26The non-foil version of this card is exclusively available in the TMNT Pizza...
Swamp (266) (Foil) (M21) from Core Set 2021, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Mike Bierek
Swamp (559) - Jumpstart Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Titus Lunter Card Text: Foil Jumpstart Lands(T: Add B.)
Swamp (281) (ECL) from Lorwyn Eclipsed, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Raoul Vitale
Swamp (485) (Foil) (MH2) from Modern Horizons 2, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jerry Tiritilli
Swamp (238) (Foil) (M11) from Magic 2011, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: John Avon
Swamp (459) (Foil) (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Piotr Dura
Swamp (314) (TRK) from Star Trek, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Pablo Mendoza
Swamp (181) (FRF) from Fate Reforged, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Adam Paquette
Swamp (276) (SOS) from Secrets of Strixhaven, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sergey Glushakov
Swamp (104) - 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 (339) (Foil) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Bob Eggleton
Swamp (461) (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Grady Frederick
Swamp Mosquito (A) (ALL) from Alliances, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Nicola Leonard Card Text:FlyingIf Swamp Mosquito attacks and is not blocked, defending player gets a poison counter. If a player has ten or more...
Swamp (060) (DVD) from Duel Decks Anthology: Divine vs. Demonic, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mark Tedin
Swamp (240) (M11) from Magic 2011, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alex Horley-Orlandelli
Swamp (061) (JMP) from Jumpstart, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Andreas Rocha
Swamp (106) (J22) from Jumpstart 2022, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alexander Forssberg
Swamp (341) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Swamp (310) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: JB Casacop
Swamp (342) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Pete Venters
Swamp (js438) (WC97) (Jakub Šlemr) from World Championship Decks 1997, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Andrew Robinson Card Text:T: Add B to your mana pool.Not a Tournament Legal card.
Swamp (083) (DDJ) from Duel Decks: Izzet vs. Golgari, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Stephan Martiniere