So is Ness mostly DD camp and do long wavedashes until the opponent does something dumb and then you do an appropriate combo starter (Dair, grab, Uair, dash attack) and try to do a big combo after?
Yea, it's a lot of camp and wait for a combo opportunity. Dairs are really hard to land unless you get some good reads. Uairs hitbox is huuuge, so it's actually a viable approach (you can DJC uair while moving forward such that the uair hits close to the ground - pretty sexy); and at low to mid percents it combos (in some cases pseudo combos) into nair, another uair, bair, so on.
Ness's DD is definitely legit, especially if you DD into DJC'ed bairs/fairs <-- can throw off your opponent's spacing massively. Actually, something that I've been messing around with lately ... if you jump backwards while facing your opponent and DJC fair using the analog stick (not the c-stick), you get a huge momentum boost forward. It's so easy to do, too. ^_^
I don't dash attack much, honestly, because it can be unreliable (and often CCable
). The only thing dash attack really sets up, anyway, is bair, and I'd rather just space a well timed DJC'ed bair then face the risk of botching a dash attack.
Dthrow has like, crazy unexplored potential. In fact, all of Ness's grabs are freaking good. Uthrow, obviously, rocks on FFer's. It's hard to follow up if they DI, buuuut you can tech chase with it, occasionally run into a DJC uair and catch them before they hit the ground, or wavedash > utilt
Dthrow at low percents can sometimes lead to a missed tech for like Roy, Falcon, etc. You can wavedash > jab reset them. ^_^ If you happen to have dthrown them close to the ledge, your jab reset should be followed up with an fthrow and edgeguard, even at low percents due to fthrow's set knockback *evil laughter*. Go for a dair spike every once in a while. This is especially **** against my roommate who plays Roy. I gimp him all the time like this bahaha.
I find Ness's fast and long wavedash better for spacing and tech chasing in many cases. For spacing, it's really nice wavedashing backward > fsmash or wavedashing forward > ftilt. Really practical and can be used to interrupt momentum, etc.