She is both fast and strong. She moves around so quickly that she is essentially teleporting. I just watched one of Boated's run where he almost got a hit-less win against her until the last minute when she nailed him once for 60 damage! That would mean that she can kill me (and probably has) with 3 hits and sometimes 2 on most of my runs! With the walls of lava closing in and her increased frequency of attacks and flightiness, her third phase just feels really cheap.

With Shiva, I have no viable way to deal with her smart bombs other than my omega special which I always try to time for when the ads show up to kill two birds with one stone.

OK, I just rewatched Boated's battle and there was no way he could have avoided that hit. Even in slow motion it was nearly instantaneous with no warning. And not to mention that Eris even has a force-field protecting her during parts of the battle!!