Your search for "Chamber Sentry 232" revealed the following:
Chamber Sentry (Foil) (GRN) from Guilds of Ravnica, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Adam Paquette Card Text:Chamber Sentry enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast...
Chamber Sentry (GRN) from Guilds of Ravnica, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Adam Paquette Card Text:Chamber Sentry enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.X,...