Your search for "Mantis Rider 184" revealed the following:
Mantis Rider (Foil) (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Johann Bodin Card Text:Flying, vigilance, haste
Mantis Rider (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Johann Bodin Card Text:Flying, vigilance, haste
Mantis Rider - KTK Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Johann Bodin Card Text:Flying, vigilance, haste