Delriach
Sindelly
There's not much to say on the matter. You're pretty much screwed if your opponent is at the same level as you or better. It's such an uphill battle every single match. It's not just bad, but it's really draining and demanding. I don't really mind playing this game like it's a shmup but the reward is so minimal. You have to pray your opponent does something unsafe that's easy to punish.
If you're fighting someone like Reptile or Cage you'll get destroyed by just one little mistake. Kitana is the same way. Sindel can outzone her if you're really smart about it but if she manages to get one combo in all your hard work would be for nothing. Since Sindel has one of the worst comeback potentials out of any character in the game, if you're at the life disadvantage you can't really do anything significant.
If you're fighting someone like Reptile or Cage you'll get destroyed by just one little mistake. Kitana is the same way. Sindel can outzone her if you're really smart about it but if she manages to get one combo in all your hard work would be for nothing. Since Sindel has one of the worst comeback potentials out of any character in the game, if you're at the life disadvantage you can't really do anything significant.