I use wiimote+nunchuck. Good luck doing anything properly without setting the d-pad to smashes >.> And I'd just like to throw in how much it bothers me that I can't set - to grab.
ANYWAYS, yeah, I set d-pad to smashes (it's almost a necessity after you get good). By tapping down then up on the dpad, you can DAC during a dash, but the timing is a lot harder than on GC controller (I'm ashamed to say I can't do it consistently
). You'll also need to find a grab button that works, I set 1 to grab, it's awkward but works for CGs and stuff, and then theres always shieldgrabbing. Honestly, the ATs are a lot easier on a GC controller, so if you think they're vital to your game, switch.
Illusion cancel just takes a lot of practice for the timing. You need to press B during one of three frames. I try to time it by pressing B right as wolf's claw is beginning to move at the beginning, during the swipe. Don't just randomly press B, time it according to something, practice it once you got it right, and burn it into your muscle memory. Personally, that's the best way to do it, don't slow it down either, always use full speed for reaction time reasons.
Hope that helped. You have any other questions with wiimote+nunchuck, or any ideas, feel free to talk to me about them, I'm going to stick with W+N, and I'm open to any new ideas you might have regarding controls and what not