User blog comment:Matt Hadick/Super Smash Bros. for Wii U and 3DS Tips and Tricks/@comment-24202778-20141211172814

Lucario- In Training, use P1 as Lucario and the CPU as Fox. Go to Corneria (or Hyrule Temple in the Wii U version). Once Fox has 42% damage, use Aura Sphere. That move can beat a lot of challenges in the 3DS version!