It's psychological momentum as much as anything. While she performs well, she'll be considered at least technically very powerful, for better or worse.
Black Mamba is the best Helena player so in no regards is she as broken as people are making her out to be. How did helena go from worst character to now broken.
because, the chances of you guessing right are indeed slim, and once you do guess wrong, that stun game is so deep that at least a large chunk of health is coming with her from at each opportunity
and even if she whiffs, a lot of her moves have so much priority over yours, i.e. your jab can be beaten by her crushes easily, and your slower moves can be beaten by her knee launcher easily, and if you block, not only do you have to avoid a grab, but a low that gives an incredible stun.
I thought only having the stun game wouldnt make her broken. Isnt that a bit DOA4. And all you gotta do is do a mid punch and you will beat out her crushes since her crushes are slow.
I don't know the exact numbers but even still you can't interrupt her out of that thing easily. As you could see the only way to beat it is to not get caught in to vortex at all. Once you do you're going to lose a lot of health. The mid kick(knee launcher), covers more than anything.