On another note, I have been testing out Kangaskhan lately and I am really wondering why no one is using her. She has pretty good defensive stats for NU (105-80-80) along with decent base 95 attacks and a good 90 speed. She also has a great movepool with access to wish, fake out, sucker punch and drain punch among others..
Personally, the best Kanga set is SubPunch. 101 Subs, bulk, STAB Return/Frustaration, Sucker Punch and Focus Punch, with Scrappy too so Ghosts can't come in on FP?
Although, 101 Subs admittedly aren't that big an issue in NU, especially as Kanga is immune to Night Shade.
As a result, I'd suggest giving this a try:
Kangaskahn @ Leftovers
252 Atk / 252 Spd / 4 Def
- Focus Punch
- Sucker Punch
It may lack STAB, but Focus Punch running from 317 Atk is going to hurt anything that dosen't resist it, and Frustration is going to hurt even more [Base 153 effectivly over Base 150]
Sucker Punch is always useful priority, and happens to take out those pesky Psychic types, the only type who can switch in on Focus Punch [Due to Scrappy]
Kanga behind a sub is outright fearsome, and hits the tier for neutral.
You could also run a varient with more bulk, so you can sub after they move, taking a hit, but that leaves you vunerable to status before you sub. Base 90 is brilliant so you can go either way.
I'm gonna give it some test runs, to see if it's as effective IRL as in theory.
EDIT: It's seeming very effective.