Your search for "Atraxa's Fall 176" revealed the following:
Atraxa's Fall (Foil) (MOM) from March of the Machine, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Xavier Ribeiro Card Text:Destroy target artifact, battle, enchantment, or creature with flying.
Atraxa's Fall - MOM Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Xavier Ribeiro Card Text:Destroy target artifact, battle, enchantment, or creature with flying.
Atraxa's Fall (MOM) from March of the Machine, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Xavier Ribeiro Card Text:Destroy target artifact, battle, enchantment, or creature with flying.