So, I've started a Pokemon Gold run, and I accidentally chose Chikorita as my starter. Needless to say I went and got the best possible candidate for a replacement as soon as I could. I am now attempting to build a 5 or 6 pokemon team around a Dunsparce called Lagann. If possible, I would like it to be kept TTGL themed. I just beat Bugsy, so far I have;
Dunsparce(Lagann) lv.16
Flaafy(Kittan) lv. 16

Any help would be incredibly welcome. Obviously I need a Gurren but I'm not sure who. Probably Wobuffet, another denizen of the Dark Cave. But I'm open to all ideas. I plan to beat the game with this team.