What about Dragon Dance Scrafty for just Kangaskhan? With Dual Screens, I can easily build on the 1/4th effective Priority moves, and I could probably toss Zen Headbutt for Ice Punch if need be.Normal Lucario is kinda slow though... and he's destroyed by most scarf users and Talonflame :/ (I suppose you could argue ExtremeSpeed out-priorities and OHKOs, but if he gets caught on the setup...)
I honestly don't know, Mega Kangaskhan is gonna be a staple on most teams and he can outspeed Lucario and OHKO with a Parental Bond Earthquake. Gah... this tournament is going to be a pain with uber megas and Xern/Yveltal involved.
You may say "but wait Scrafty isn't in OU, that'd just be silly", but the only real threat it'd face with Dual Screens would be Fighting and Fairy types, and Espeon and Charizard Y both help deal with them.
Or, alternatively, I could run Swords Dance Life Orb Scizor, and Vaporeon could provide the pivot in case any offensive Fire types try to take him on.