Your search for "swamp 81" revealed the following:
Swamp (282) (Foil) (MSH) from Marvel Super Heroes, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sylvia Liu
Swamp (258) (Foil) (DTK) from Dragons of Tarkir, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Adam Paquette
Swamp (241) [Full Art] (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Vincent Proce
Swamp (268) (Foil) (M21) from Core Set 2021, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Christine Choi
Swamp (143) (ARC) from Archenemy, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Susan Van Camp
Swamp (342) (Foil) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Terry Springer
Swamp (397) (Foil) (LCI) from The Lost Caverns of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Logan Feliciano
Swamp (206) (POR) from Portal, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Romas Kukalis
Swamp (059) (DVD) from Duel Decks Anthology: Divine vs. Demonic, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mark Tedin
Swamp (274) (Foil) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Mia Boas
Swamp (276) (Foil) (ECL) from Lorwyn Eclipsed, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Raoul Vitale
Swamp (267) (M21) from Core Set 2021, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Cliff Childs
Swamp (258) (WAR) from War of the Spark, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Swamp (271) (Foil) (EOE) from Edge of Eternities, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sergey Glushakov
Swamp (170) (NPH) from New Phyrexia, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Lars Grant-West
Swamp Battleguard - OP19-EN014 - Common - Unlimited from OTS Tournament Pack 19, available at 401 Games Canada. Rarity: Common Card Text:This card gains 500 ATK for each "Lava Battleguard" you control.Official Tournament Stores must review their Konami OTS agreement...
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 (034) (BRC) from The Brothers' War Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Robin Olausson
Swamp (312) (Surge Foil) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Calder Moore
Swamp (295) (C19) from Commander 2019, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (272) - Full Art (ZNR) from Zendikar Rising, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sam Burley
Swamp (562) - Jumpstart Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ravenna Tran Card Text: Foil Jumpstart Lands(T: Add B.)
Swamp (cr340) (WC02) (Carlos Romão) from World Championship Decks 2002, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Arnie Swekel Card Text:BNot a Tournament Legal card.
Swamp (333) (C15) from Commander 2015, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (241) (Foil) (M14) from Magic 2014, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Andreas Rocha
Swamp (272) (Foil) (EOE) from Edge of Eternities, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Liiga Smilshkalne
Swamp (268) (DMU) from Dominaria United, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Seb McKinnon
Swamp (345) (C16) from Commander 2016, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Kev Walker
Swamp (270) (Foil) (XLN) from Ixalan, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Raoul Vitale
Swamp (486) (Foil) (MH2) from Modern Horizons 2, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Pete Venters
Swamp (Planeswalker Deck) (GRN) from Guilds of Ravnica, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Swamp (271) (Foil) (AFR) from Adventures in the Forgotten Realms, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sarah Finnigan
Swamp (Etched) (486) (MH2) from Modern Horizons 2, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Pete Venters
Swamp Mosquito (B) (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 (279) (Foil) (MOM) from March of the Machine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Sam Burley
Swamp (258) (ELD) from Throne of Eldraine, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Paul Scott Canavan
Swamp (261) (Foil) (ELD) from Throne of Eldraine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Svetlin Velinov
Swamp (262) (AKH) from Amonkhet, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jonas De Ro
Swamp (106) (ACR) from Assassin's Creed, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Wangjie Li
Swamp (cr342) (WC02) (Carlos Romão) from World Championship Decks 2002, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alan Pollack Card Text:BNot a Tournament Legal card.
Swamp (1384) - Featuring: Gary Baseman (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Gary Baseman Card Text: Featuring: Gary Baseman
Swamp (262) (Foil) (ORI) from Magic Origins, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Dan Frazier
Swamp (294) (C19) from Commander 2019, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alayna Danner
Swamp (238) (AVR) from Avacyn Restored, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Swamp (258) (Foil) (ELD) from Throne of Eldraine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Paul Scott Canavan
Swamp (241) [Full Art] (Foil) (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Vincent Proce
Swamp (396) (Foil) (KHM) from Kaldheim, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Piotr Dura
Swamp (2511) - Dungeons & Dragons®: Lands of the Forgotten Realms (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Arthur Yuan Card Text: Dungeons & Dragons: Lands of the Forgotten Realms
Swamp (271) (XLN) from Ixalan, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Min Yum
Swamp (285) (Foil) (FRA) from Reality Fracture, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Josu Solano