Fine, I'm done explaining this, keep believing you can D2 Joker's J3, that his wakeups are ass or that he gets outzoned/corner game doesn't exist.
To be fair, she can MB F3 it at any range, which Khaotic did to me often.
That said...
Joker's only saving grace in this MU is the post slide guessing game. In addition to getting outzoned, he literally cannot jump at killer frost (MBF3 + D2) without risking 40% into a vortex. not to mention his wakeups are ass.
It's a shame I'm free to Batman; I wanted to play you in tournament this weekend.
Anyway on topic:
In close range a cross-up jump can work, and there are certain setups where I can jump safely, but for the most part you're right.
However, getting in isn't that hard if I play it patiently, and the wakeups aren't a huge factor (Although flower is *almost* fully invincible, which is more than some characters can say) considering you can react to the meterless vortex and the metered one is a straight guess that doesn't depend on wakeups.
I feel Joker's strengths in this matchup are OTGs which kind of negate the slide wakeup, being able to outfootsie Frost with D2 (Although this is parry-able) and B1, having vastly better pressure, doing better damage and having a godlike corner game. D2 also keeps Frost out of the air, although admittedly being in the air is less important for Frost than Joker.
On the flip side, Frost can stop him from taking to the air, which shuts down half of his game plan. She can also zone him rather effectively (Although gun can keep Frost in check and allow him to move). Parry is also a problem for Joker as all of his combo starters are mid and D2, his main spacing tool, can be parried. It also really hurts that she can duck the last hit of 212, hurting his pressure game. Also, obviously, the vortex.
IDK... On paper it sounds kind of in Frost's favor, but the matchup didn't feel to be against me when played offline.
EDIT:
I was pointing out why its 5-5.
I did say that on a read you can anti air him.
The anti air hitboxes don't even matter, if aquaman's 7f d2 which its huge hitbox can't anti air joker on reaction the KF will not do it. Ive heard this arguement from every single char forum and theyre all clueless.
This logic is flawed.
AM's anti-air has the highest vertical hitbox of any D2 but it's horizontal range is kind of weak. KF's MB F3 is the opposite. It has as much, if not more, horizontal range than vertical and thanks to the hit of armor you will fall into it regardless of how you space a 1-hit aerial (Unless maybe if you're MMH with trait on coming straight down from an airdash).
