Ghost / Steel... with Levitate ability...I wonder what it'll be look like...
In case you haven't noticed, a lot of the type combinations have a 4x weakness.
Water/Ground they use that a lot, 4x grass.
Psychic/Fighting.... hmmm... 4x flying.
There are a lot more, but right now I am drawing a blank. Just look at some of them.
Anyway, a few that would be good are.
Fire/Grass (although highly unlikely)
And really - in your words - anything else that doesn't have a 4x weakness.
It'd be very strong, but if it had 1 HP like Shidinja, it's ok, since Sandstorm/Hail/Stealth Rock/Spikes/Poisen Spikes all says hi, also since it'll only be touchable with fighting after foresight....it won't be done.;359; Dark And Steel I would LOVE.
The pokemon, I Imagine to be something to do with gears.
With 2 Immunities, and only 3 weaknesses, And The rest being Resistences, A Awesome Pokemon. ;359;
(also, A Ghost/Dark type with wonder guard would be untouchable :0)
A Grass and a Dragon Type. Why? I don't know, I guess I would just like to see a Pokemon with those two Types. And it seems like it would be a good type, but I dont' know. I don't know if that's already been said though.