Your search for "Plains 454" revealed the following:
Plains (454) (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Emmanuel Shiu
Plains (454) (Foil) (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Emmanuel Shiu
Beast (004) // Insect (005) Token (Foil) (TTRC) from Star Trek Commander, available at 401 Games Canada. Rarity: Token Finish: Foil Artist: Arthur Yuan & Kevin Glint