lmao dude I already know that.
Low tier is still low tier though, and it's natural to want the characters that you like to not be low tier.
As long as she's fun, I guess it's fine anyway.
Ya she looks really fun, the only faults I see are she has to take a lot of risk to get the op to duck. d/b+3 is death on block, fc,d/f+4 is 0 on hit fc but death, d/b+4 is really slow also death, HAR 3 is death. One of her safer lows, d+3, is 0 on hit so you can mix it up w/ d+3,3 mid_d+3,3 high_d+3, d+4 low_d+3, grab_etc. She has a new chunky low in FR, hopefully it's -13 or less, I'd even take -14 at this point if its good on hit/ch, looks like it also high crushes. One of her safest options is d/f+2,2 i18, knd fdht, -11 w/ pushback in the open making it safe against everyone but maybe gigas.
1st two hits of her jab strings are duck able but you can 1, d/f+1 to annoy your op. 1,1,2 is + on block, if they hit a button d/f+4 will ch. You can mix it up with 1,1,3_1,1,1 if they try to duck or interupt 1,1,2. She also has a 1,4 hl.
Her high crush tho -17 has a lot of pushback like Anna qcf+3+4. Her safest low crush is -10 , u/f+3+4, but I believe she gets u/b+4 afterwards. She has a wallsplating 1+2 break grab. Her other grabs have good oki. Her only homing move is -13, f,f+4, worse than ancient ogre's f+3 -12, but she thankfully has decent tracking so you won't have to really use it.
She has a julia esque hopkick w/ extensions, I'm not sure if it's a 12 frame gap like julia's. She has a bunch of safe mids, decent punishers (i12 wallsplating 2,2_i13 ws 1,1_i15 f,f+2,4 for stuff w/ pushback like deathfist/hei f,f+2), decent CHs (d/f+4_4,4,4_3,3,3,3,3_max range f+4_f,f+3_d+1). At the wall you can put them in the blender w/ d/b+3, her 1+2 grab, and i18 mh d/f+2,4 w! _i18 mm, -11 d/f+2,2. Sorry for the wall, I got excited haha. TekkenCube and Shudy_jinlee's channels have Manba and other good japanese Katarinas. There are also Korean Katarinas on taktak1893 like Siho.