Your search for "Seaside Citadel 302" revealed the following:
Seaside Citadel (AFC) from Forgotten Realms Commander, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Volkan Baǵa Card Text:Seaside Citadel enters the battlefield tapped.T: Add G, W, or U.
Due to distribution restrictions we are only able to ship this product to addresses within Canada.
Seaside Citadel (C13) from Commander 2013, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Volkan Baǵa Card Text:Seaside Citadel enters the battlefield tapped.T: Add G, W, or U to your mana pool.
Seaside Citadel (C16) from Commander 2016, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Volkan Baǵa Card Text:Seaside Citadel enters the battlefield tapped.T: Add G, W, or U to your mana pool.