At NEC I got some experience with the absolute best of some respected characters that I previously had little experience against, sets against Tyrant and JR and after discussing with them 6-4 Jax. Hitbox, zoning, and battle of armor. Jax's pressure isn't as scary as say sonya but jax has very good tools for punishing rain's mistakes. Forget teleporting and throwing out a geyser, rain has to keep the meter lead and make jax guess wrong at least once a round to win. The MU I avoided forever I finnaly got to get time in with Showtime and Death was Sonya, key thing is safety, safe mixup and pressure maaaan. If you read her and you ex RH, she can counter with EX Wheel, and that just makes you feel shut down. But even with all that in her favor, I still only put it as a 6-4 and they agree. Play smart poke out and it's almost the same game plan both ways she just does it better. just a couple of the ones listed that are newly explored for me.