Pokemon XD team halp

[Fawfulcopter]

OK, so I'm replaying XD for the lulz and dex.
I plan on using in my team Espeon, Piloswine(Will evolve to Mamoswine once it's traded up), Breloom and Tyranitar.
But I've reached a dilemma...I'm SE on every type now.
I like to have teams of 6, but in XD, I'm super effective on every type with just a team of 4.

So what other 2 should I have?
First two replies to name a pokemon available in XD without trading, and available before Citadark isle, that is not of the Rock, Ice, Ground, Psychic, Dark, Grass or Fighting types gets in.

 

[Bikini Miltank]

Mawile.

(sorry. but I do love Mawile)

 

[Zervah]

Growlithe, Grimer, Duskull, Vulpix, Spearrow, Mareep, Gulpin, Voltorb, Zangoose, Pidgeotto, Magneton, these are my suggestions.

 

[Fawfulcopter]

Mawile and Delcatty it is!
>_>

 

[Bikini Miltank]

You know, I usually have Mawile and Delcatty on my team in that game too...

Mawile's Sing is pretty useful in-game for catching Shadow Pokémon. Delcatty... I honestly have less justification for. But I like her.