Cassie looks pretty st
It looks like there is no magic here. Cassie is a stable character and need good and stable footsies.
She also lacks the big 4-500 damage come back factor too however RedRaptor showed few fatal blow combos - but it looks like that works only males (against female I could not do it).
Her 32F starter Fatal Blow is rarely useful in neutral, too - but at least it is just -15. I could get my friend with it who committed to longer string though.
But you get stability with Cassie nothing crazy.
Btw please help be with BnB: do you do instant J2/J3 after DB1 AMP? I experimented the execution to get the S4 better but did not find better. Tried to do a bit later but it did not help.
Against females J3 and S4 is pretty inconsistent to me, yet. But against females J2 works, too... And after J3 , B24 works too for 7 damage less than optimal. Just of course I want to do the optimal.
B24xxDB1 AMP, J3, B24xxBD3 looks to most consistent to me right now for 272. S4 ender would be 279.
I checked the "new" optimal B24xxDB1 AMP, J3, S1, B2xxBD3 it is consistent too just 267 against females.
I like this version though easy to execute the BD3 ender.
Btw the full S1, B24xxBD3 combo is the same damage as S4. But I guess it can be more consistent.