Your search for "Swamp 8" revealed the following:
Swamp (003) - Arena League Promo 1996 (PARL) from Arena League 1996, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Tony Roberts Card Text:T: Add B to your mana pool.
Swamp (382) - Bundle Promo (Foil) (MID) from Innistrad: Midnight Hunt, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Kasia 'Kafis' Zielińska
Swampert - 5/17 - Holo from POP Series 1 Promos, available at 401 Games Canada. Rarity: Holo Rare Finish: Holofoil Artist: Hiromichi Sugiyama Card Text:[W] Bubble (20)Flip a coin. If heads, the Defending Pokémon is now Paralyzed.[1WW] Mud Splash (50)If...
Scrubland (LEA) from Limited Edition Alpha, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jesper Myrfors Card Text:Counts as both plains and swamp and is affected by spells that affect either. Tap to add either W or B...
Scrubland (LEB) from Limited Edition Beta, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Jesper Myrfors Card Text:Counts as both plains and swamp and is affected by spells that affect either. Tap to add either W or B...