Probably the only guy here who plays this character more than half the time
First off I'd like to say that I'll be playing NA during the tournament this weekend, so I'll be able to post REAL LIVE match videos of NA.
I'm gonna go ahead and say that her bloodrings are damn near worthless, unless the player is REALLY putting things out there that can lead to a counterhit with bloodrings. Her 63214c OTG is probably the best thing you can do while in max mode/heat. Her AD is alright, but 63214c does good damage AND it confuses the enemy, which means you're getting about 2 BnBs worth of damage after the confusion. 214x on the ground should be used to a minimum, although its pretty good against enemies that don't know about it. You'll start getting punished out of it if the opponent catches on, but don't be afraid to use it to get you out the corner/stop the rushdown.
22A is a good poke from a distance, however if you're close enough and they block it, you can get punished as they recover before you. 22B should be used to an absolute minimum, as half the clones don't even do anything. 22C is GREAT if you have somebody whos a little too confident about their air game, or even just to get somebody away from you. 236C is not that good, if not unusable. It's way too slow, and it completely misses crouching opponents.
If you're doing an air-combo, never 214B xx 214C, because the damage becomes absolutely horrid, doing less damage than a standalone 214C, or even a 214B.
With NA, you're gonna want to play a lot more defensively than offensively, although you don't need to be scared to rush down an opponent from time to time. The best air normal is probably her j.A, as its fast enough to beat out things like Nero's j.C(I'm not saying it's the absolutely best and it'll always beat it out, just saying it's better than using her j.C or j.B).
NA is a girl.
I'll post more up after my lunchbreak, school ftw