Your search for "Riverwheel Aerialists 71" revealed the following:
Riverwheel Aerialists - IMA Reprint (PLST) from The List, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jack Wang Card Text:FlyingProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Riverwheel Aerialists (Foil) (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Uncommon Finish: Foil Artist: Jack Wang Card Text:FlyingProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn)
Riverwheel Aerialists (KTK) from Khans of Tarkir, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Jack Wang Card Text:FlyingProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn)
Riverwheel Aerialists (Foil) (IMA) from Iconic Masters, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Jack Wang Card Text:FlyingProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Riverwheel Aerialists (IMA) from Iconic Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jack Wang Card Text:FlyingProwess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)