Some people may already know this information, but I'm going to list some things that may help players who are unaware and want to improve.
Raphael has various frame traps he can use. Frame traps are attacks that will catch step and interrupt almost anything. These are frame traps where the opponent is forced to guard or crouch:
CH 3A, 3B or BB or 6BB
NH SE A, 3B or BB or 6BB (6BB close range only)
NH 6B(B)/Prep B(B), Prep BB or Prep AB
NH 6A(B)/Prep A(B), Prep BB
Guarded 66(B), Prep BB or Prep AB
NH 1B, BB or 6BB
NH WR A, BB or 6BB or 4K
NH WR K, 6BB or 6AB or 3A or 4K
Guarded 33K BE, BB or 6BB
NH 2A, WR B or FC 2B (FC 2B only if opponent is crouched after being hit by 2A)
NH 2A, 6BB or WR K or 4K
NH 3K, 3A or 6AB or 4K
CH BBB or NH BBB if opponent doesn't guard the last hit, 3A or 6AB or 4K
NH WR B, 3A or 4K (Close range only)
NH 66A, 3A or 6AB or 4K
CH 22A, BB or 6BB or 6AB or 3A or 3K or 4K or 6K (Close range only, except BB and 4K)
NH 44A(B), Prep BB or Prep AB
Guarded SE B, 3A or 2A (Opponent's back facing the wall/edge)
NH 11K, 3A or 2A
NH 22K, 3A or 4K or 6AB
NH 6B+K, 3A or 2A or 6AB
NH 2K, 2A
NH 7/8/9K, 3A or 6AB or 4K
NH 7/8/9A, 3A or 6AB or 4K (Close range only)
Some characters can escape some of these with TS moves or moves that have a built-in backstep. Ivy and Leixia for example, can use 3B/214B and 1B+K respectively to escape the NH 1B, BB and Guarded 33K BE, BB frame traps. But they can't escape NH 1B, 6BB and Guarded 33K BE, 6BB. Xiba can escape both NH 1B, BB and NH 1B, 6BB with 4A. Some frame traps don't work on Mitsurugi and α Patroklos because they can quickstep left to avoid some of them. A few examples: They can escape the CH 3A, 3B frame trap, but not CH 3A, BB or 6BB. And they can escape the Guarded 33K BE, BB frame trap, but not Guarded 33K BE, 6BB.
Using Left Needle in wall combo's:
This is angle dependant and is more difficult to do against small characters, but not impossible. In most cases, you need to stand very slightly to your opponent's left after wallsplatting them with 3A, but standing directly in front of them sometimes works as well. If you're standing even slightly to your opponent's right side, it will not work. You should always use this when possible because it does a lot of extra damage. With experience, you will know when it's likely to work or not. Left Needle works in the following situations:
CH 3A W!, Left Needle
CH 3A W!, 3A W!, Left Needle
SE B, 1B W!, Left Needle
SE B, 1B W!, 3A W!, Left Needle (Works better on large characters)
1B W!, 3A W!, Left Needle
Prep K BE W!, 1B W!, Left Needle
44A+B W!, 3A W!, Left Needle
66K W!, 3A W!, Left Needle (Doesn't work on large characters)
Against Astaroth only:
22B, 3A W!, Left Needle
22B, 3A W!, 3A W!, Left Needle
Prep K BE W!, 22B, 3A W!, Left Needle
4A+B GI (B during GI) W!, 3A W!, Left Needle
After hitting the opponent with Left Needle, you should use A+BA instead of 3(B), Prep BBB. Prep BBB won't stun because the same stun is already used when Left Needle hits. I recommend finishing the combo with 8,A+B (left side of the screen) or 2,A+B (right side of the screen). It's easier to do this when using Left Needle in wall combo's. Sometimes, the opponent may face sideways after getting hit by Left Needle. If that happens, then it's not necessary to step before finishing with A+BA.
The combo's listed above don't work with Right Needle. The only wall combo where Right Needle will work is this:
B+G (Slightly to your opponent's left side) W!, 3A W!, Right Needle. But this doesn't work often and isn't worth the risk.
There are other situations where you can use Left Needle/Right Needle. You can use Right Needle to interrupt Leixia doing WR B after guarding 3A+B. You can use Right Needle to interrupt Xiba doing the last hit of A+BB,K after guarding the first attacks. You can step vertical string attacks and punish with Left Needle/Right Needle. You can predict opponents stepping one way due to a wall or edge blocking the other side and catching them with Left Needle/Right Needle, etc.