Mika has a really good s. lp. Throw it out often when you have nothing better to do. It reaches far and stuffs a lot of things.
Mika has a good walk speed, it’s fine in the neutral to weave in and out and throw some s. jabs. They stuff a lot of pokes.
Mika’s s. mk is obviously good. The recovery is poor though so you want to use it at max range so it clips people on the last active frames if possible.
Mika’s s. mp is something you want to base your game around. Try to get used to hit confirming this as best as you can into her passion press. Even if you can’t consistently, this is a powerful move and should be used often.
Mika’s Charged s. rh should really only be used when you feel it’s going to touch the opponent, otherwise don’t use it. Of course if you do touch the opponent with it, free mixup. On block most people will eat a command throw afterwards but you can mix them up accordingly if not.
Mika’s c. lk seems to be the forgotten poke for her. It’s a great move that reaches far. In fact this may be the best low poke in sfv, so use it! Throw it out whenever and make people watch their feet. It reaches so far that people must respect it and this lets you walk forward into your preferred s. mp poke range.
Hope this helps.