Your search for "mirror-sigil sergeant 12" revealed the following:
Mirror-Sigil Sergeant (CON) from Conflux, available at 401 Games Canada. Rarity: Mythic Rare Finish: Normal Artist: Chris Rahn Card Text:TrampleAt the beginning of your upkeep, if you control a blue permanent, you may put a token into play that's a...
Mirror-Sigil Sergeant (Foil) (CON) from Conflux, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Chris Rahn Card Text:TrampleAt the beginning of your upkeep, if you control a blue permanent, you may put a token into play that's...