I think it's better if LP doesn't learn Hilde because the community will have another subject for bans. It's been a while since we last heard of C2B loops.
She has 22B the best tech crouch and if you can abuse of her charging attacks she is really solid, use only her regular attacks and you will be using the lowest tier. Also 2A+B and 66K, use those two A LOT!
22b is really only good for whiff punishing because it's slow and linear. 66k is good, but I'd eat that al day over being thrown. Also, 2a+b is good, but punishable.