Your search for "Midnight Guard 99" revealed the following:
Midnight Guard - BBD Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jason A. Engle Card Text:Whenever another creature enters the battlefield, untap Midnight Guard.
Midnight Guard (BBD) from Battlebond, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jason A. Engle Card Text:Whenever another creature enters the battlefield, untap Midnight Guard.
Midnight Guard (Foil) (BBD) from Battlebond, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jason A. Engle Card Text:Whenever another creature enters the battlefield, untap Midnight Guard.