Your search for "Command Tower (1989)" revealed the following:
Command Tower - Furby: Doo-ay Noo-lah (Confetti Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: SchmandrewART Card Text:T: Add one mana of any color in your commander’s color identity.
Reliquary Tower (TRC) from Star Trek Commander, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: William Phifer Card Text:You have no maximum hand size.T: Add C.
Command Tower - Marvel's Spider-Man: Villainous Plots (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Roberta Ingranata Card Text: Marvel's Spider-Man: Villainous PlotsT: Add one mana of any color in your commander's color...
Command Tower - Marvel's Spider-Man: Villainous Plots (Rainbow Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Roberta Ingranata Card Text: Marvel's Spider-Man: Villainous PlotsT: Add one mana of any color in your...