Kangaskhan

Type Tier
Normal BL
Statistics
Stat
HP
105
413
Atk
95
288
Def
80
258
SpA
40
178
SpD
80
258
Spe
90
278
Name Item

Cursing Kangaskhan

Leftovers
Moveset
~ Curse
~ Rest
~ Return
~ Roar

This set is so simple, and yet it can be so hard to counter. Curse up, hit anything not resistant to Return, Roar away everything that is, Rest, and repeat.

Name Item

Parattraction Kangaskhan

Leftovers
Moveset
~ Body Slam
~ Earthquake
~ Attract
~ Substitute

The idea of this is Parattraction with Substitute. You'll want to Paralyze with Body Slam, and then use Attract and Substitute to avoid being hit. Attack Gengar and Misdreavus with Earthquake, as well as the Rock and Steel-types that come your way. Really the only thing that can negate this totally is a female Skarmory, but who wants to lower their Attack like that? Skarmory will, however, hit that Whirlwind past the Parattraction eventually.

Other Options

Body Slam can be used with Sleep Talk to make one hard-to-take-down mother. Kangaskhan learns a lot of moves, but makes use of only a few of them.

Opinion

Kangaskhan is, to me, a Pokémon that's kinda out there in no man's land. Its stats are incredibly well-rounded and proportioned quite nicely. Its Speed is surprisingly nice for a huge Mongolian kangaroo and it can finish off stuff with a lower Speed than 278. It is capable of sweeping a team with no trouble at all without a real fear of being phazed. After a few Curses, even Skarmory and Rhydon aren't going to be able to be much worry for Kangaskhan. The other big thing with Kangaskhan is its ability to put up with Special Attacks too. It can survive 3 Thunderbolts from Raikou, meaning if it Cursed up and Rested on a Raikou switch-in, it could survive the Rest to kill it. It's not hard to use at all. However, due to the presence of Snorlax, it quietly remains in the shadow of underused. Since Ghosts can completely mess up Kangaskhan, you may want to use it with Spikes and / or something with Pursuit to rub out the Ghosts, assuming you want to use Roar over Earthquake.

Counters

Gengar and Misdreavus are completely immune to Normal and therefore counter the Curse set, but should beware of Earthquake. Skarmory, Rhydon, and Steelix have very high Defense to serve as a base for Roaring the Curse set away. Kangaskhan isn't particularly resilient against very strong attacks, so just assailing it directly is a nice way to get rid of it.