In GAC I just faced Rey RHFinn RHPoe and used SLKR Hux Thrawn. Their Poe entered damage immunity and once he came out he would take no damage despite having half a sliver of health. Rey had not triggered her ult ability so this was not the issue. I was able to target and attack Poe with all of SLKR's abilities before Rey entered ult stance and killed me. This is a very poor way to lose a GAC match and is a bug that needs to be looked at. If you're going to call it 15% RNG loss then just make the battle a loss upon entry and don't waste our time. Very frustrating.