Your search for "Sandsteppe Citadel 241" revealed the following:
Sandsteppe Citadel (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G to your mana pool.
Sandsteppe Citadel (Foil) (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G to your mana pool.
Sandsteppe Citadel (TDM) from Tarkir: Dragonstorm, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Diego Gisbert Card Text:This land enters tapped.T: Add W, B, or G.
Sandsteppe Citadel (C17) from Commander 2017, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G to your mana pool.
Sandsteppe Citadel (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G.
Sandsteppe Citadel (DMC) from Dominaria United Commander, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G.
Sandsteppe Citadel - KTK Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G to your mana pool.
Sandsteppe Citadel - CM2 Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Sam Burley Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G.
Sandsteppe Citadel (Foil) (CP3) from Magic Origins Clash Pack, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: John Avon Card Text:Sandsteppe Citadel enters the battlefield tapped.T: Add W, B, or G to your mana pool.