I've been messing around with tech similar to this. Although they can backdash, if they choose to ex-reversal, you can do 212 ex-glaive, then quickly b3 into fan lift. Breaks armor and provides full combo for
almost every character. Doesn't work against Tempest Lao ex-spin, but works against his other variations for ex-spin. Cassie's ex-flip kick places her too far for b3 to reach. Flat out doesn't work for Liu Kang's armored specials, but you have time to do a small RC into B14 setup to break armor on glaive return. Reptile's ex-slide goes through glaive return and there's no time for b3, but I found this specifically for the Reptile MU and it's super consistent. Anyways, I've been messing around with Mournful for a few days and she's really fun!