@#1
Very true, there are a lot of gimmicky moves and setups that will work on occasion. Don't be afraid to use them if you think your opponent isn't familiar with them. Unsafe moves with strange properties for example.
@#2+3:
The easiest way around this is to play people of all skill levels...
Unlike most attacks of its type the CE doesn't keep your opponent constantly in hitstun/blockstun. It's better to do standing mixups and use the orb hits to keep them from getting away.
I had a chance to test Nightmare at NEC, and I can confirm most of what page has.
A+K is gone, aB is moved, bA (from standing, not side stance) is gone, Terror Charge is gone. Looks like the midscreen combo is now WR [B ] A+B GS K BE which looks epic.
Can't really say much more than that as...