Milkapoke

As some know, I will be competing in tommorow's championship in Madison. But, well...my team needs a new Pokemon.

Right now, my team is as follows:

Arcanine
Kingdra
Jolteon
Slaking
Porygon-Z
Claydol

But I'm not liking the Claydol. I caught it at level 50, so its stats are shit. I was already planning of throwing it out, but I have no shit of a clue what Pokemon to put in it's place. And I WILL NOT REPLACE ANY OTHER POKEMON. Do NOT get talking about my Slaking; I love it so much.

Anyhoo, here are the contestants of being the final Pokemon on my team. Please keep in mind that I have trained all of these since they were very young, so they do have some upper-hands on Claydol.

Shedinja
Swellow
Dragonite
Lapras
Dusknoir
Zoroark
Swanna
Mismagius

I know my options are limited...but this is all I got, besides the Pokemon I have caught at level 50 or above.

Please keep in mind Shedinja, Swellow, and Mismagius are all at level 30 or lower, so it'd be nice to get some feedback fast....so I can train them in time.

THANK YOU SO MUCH.