My current team decided is
-Lucario (one of my favorite Pokemon, fighting type, awesome speed)
-Excadrill (also one of my favorite Pokemon, pretty early catch, durable, good move set)
-Volcarona (Great fire and bug type, sweeper with quiver dance)
-Serperior (starter, I used oshawott in my replay of Black and I already wanted to use lucario so no emboar)
So what should my 5th and 6th Pokemon be? Preferably catchable before or right after beating Clays gym.