So, as PotW #5, I present . . . Kangaskhan!
While this marsupial reptile may be non-evolving and of only one gender, Kangaskan gained several new toys to play with in the fourth generation. This leads to its wonderful ability, Scrap*py (stupid word filter! ), which allows it to hit Ghosts with Normal and Fighting moves. This, combined with decent Attack and Speed, and somewhat burly HP, can make Kangaskan a suprisingly good sweeper. And of course, with an adorable purple baby in its pouch, it becomes a great Pokemon automatically.
In fact, the psuedo-kangaroo works best using the common Sub Punch moveset:
Kangaskan @ Leftovers
212 HP / 82 Atk / 216 Spe
~ Focus Punch
~ Sucker Punch
Being able to set up a sturdy 101 HP Sub (to avoid being removed by a Seismic Toss) is always an asset. Then, just Focus Punch up to kill Blissey and other Normals, Rocks, and Steels. Sucker Punch is useful if you think you're about to be attacked, and will work wonders against Ghosts, although with Scrap*py you can hit them 100% of the time anyway. Return works only if it has max happiness, but is the main Normal attacking move anyway. These IVs allow Khan to outspeed some of the slower sweepers, although you could always pour more EVs into Attack to hit harder if you wanted to.
I actually had a Kangaskhan like this once, called Joe Mama. Though inevitably it ran amuck and climbed the Chrystler Building. After that, it couldn't get arrested in this town . . .
Ballom's Rating: 4/5. If Kangaskan had more Attack and Speed, it would join the ranks of Arceus as a god among Pokemon. As it is, however, it falls into the Underused category.