I have this idea about a team.
I call it, 2 weather.
It is basicly a team with two weather starters and pokémon who can take advange of both the weathers.
Like skmory or ferrotron. They like rain and sandstorm, (they like rain better though).
One of the pokémon should carry sunny day/ rain dance/ sand storm/ hail.
Next you need a sweeper. Kabutops (@ battle armor if playing by smogon rules)
He gets the spdef boost and water stab, rain boosted choice band water fall.
Add reunicles for sytegy aganst fighting.
Now you have,
Politoad- grass, electrtc.
T-tar- fighting, bug, water, grass
Skarmory- electikc, fire
Reunicus- bug, dark, ghost.
Pokemon with bug restst.
Pokemon with eletrikc resit.
That is my team.
Oh and don't worry, every one makes mistake. No one is perfect. My spelling is the farthest thing form perfect.