User blog comment:Matt Hadick/Super Smash Bros. for Wii U and 3DS Tips and Tricks/@comment-25173707-20141212214317

Lucario: When charging Aura Sphere, anyone caught in the forming sphere will be dealt damage. Try charging as long as possible until they escape it!

Greninja: Greninja's recovery can be used to push enemies off the stage and give them the small nudge to be KO'd. Make sure you try hitting them with the tail end of the water stream, and make sure not to accidentally KO yourself.