Im a bit curious about KF though. I thought that one was even. Care to enlighten me?
Is her iceberg shootable on block?
Iceberg can be punished with Quick Shots anywhere on the screen. Low Shots fire under Ice Daggers. She cannot threaten Deathstroke full screen in any way, shape, or form.
Low Shots obviously stop the slide. If she approaches you from the air, sword flip beats all options.
d+1 xx d,b+3 checks the slide and cannot be parried. She can still backdash. She can jump away sometimes depending how close the slide gets blocked. Nonetheless, every time she backtracks Deathstroke regains the advantage.
Deathstroke has a very good jump back 3. It whiff punishes the slide and allows you to follow up with 3,2,3 f+2,3 xx sword flip.
I have to warn Deathstroke players to be careful when you fire Low Shots on wake up. Slide has full invincibility frames on the slide and it reaches farther than you think. I recommend backdashing and then firing.
Other than wake up slide, I think Deathstroke controls the match up very well. He is well-equipped to fight her.