Raven has a difficult time if you're patient, yet forceful.
There are 2 ways in.
Way 1: Outplay
1.) Don't get impatient and dash on her at max range.
2.) Don't fire beams unless that's the match you want to play (this is a different match altogether)
3.) Always, ALWAYS be aware of her trait. It takes a moment to start up. You can dash 2-3x in that moment. Close the distance when this occurs. Dictate the play while her trait is up, to not let her start teleport harassing you.
4.) Once you get into about 3-5 character length, you can block-dash-block to start getting in.
5.) Has a few + strings, but one most prominent is her 3 hit string, where the 3rd hit frametraps when it looks like it shouldn't. It's +5 on block if you block that last one. Dont. Wait till you see the animation for the 3rd one start, and then backdash and punish with f23. If you just backdash every time on the first two, she will do the first two and the force-grab you.
6.) She has a fast enough jab to fight her way out. Be aware of it.
Way 2: Outsmart
1.) Start a beam war. Without her counter, you win the beam war very easily. We're trying to force out the counter here.
2.) If she uses her trait, hit her with your Zap then immediately dash and do MB superman punch. You're in.
3.) During these counters, she's going to start throwing unblockable beams back at you. This is what we're looking for. There are two beams, one from the sky, one from the ground. You can jump the ground one (its unblockable so dont block it), but you dont go in on it. You wait.
4.) Eventually she will perform the skydrop unblockable counter beam. This is what we're waiting for. 4 dashes or one dash and MB superman punch. You may even hit her.
When you're in, all of this is the same. Dont let her out, dont let her breath, and her best wakeup attack is punishable.