Pokemon Black and White Pokedex - Purrloin, Liepard

Liepard (レパルダス Leopardas)
#016 Isshu / #510 National
Type: Dark
Species classification: Cruel Pokemon
Abilities:
Limber – Cannot be Paralyzed
Unburden – Doubles Speed after user consumes held item
Dream World abilities: Mischievous Heart – Non-damaging moves get higher priority
Location found (Black/White): Routes 5, 9, 16, Dreamyard (Doubles grass)
Wild hold items: None
Egg groups: Ground
Capture rate: 90
Gender ratio: 50/50
Base stats: 64 HP / 88 Atk / 50 Def / 88 SAtk / 50 SDef / 106 Spd / 446 Total
Effort values: 2 Speed
Evolution family: Purrloin > Liepard at level 20

Liepard can be helpful throughout the game, especially against the fourth gym if your Liepard has the Limber ability, and of course, against all those Psychic trainers. On the battling side, its Dream World ability Mischievous Heart (note: this is another new ability and we're still waiting on the official English translation) has the potential for some annoying competitive strategies, especially since Taunt lasts three turns this generation, although Encore has been downgraded to only three turns as well. It's also worth noting that Liepard doesn't have any SAtk STAB moves whatsoever, unless you get a Dark-type Hidden Power.