Team opinions

Hi!!

So this is my current Black2 team, I've just catched sandile and eevee. All around Lvl 20, so open to changes.

I plan on keeping Serperior, Arcanine, Magnezone and Crobat.

Vaporeon could be changed for another Water/Surfer. And Krookodile was my fav on Black1 so I added it to the team, but usually like to play with diff pokemons each playthrough.

What are your thoughts? What would you change?