Barristan's death. NEVER FORGET. NEVER FORGIVE.
Maybe I am biased because he is my favorite character, but I still think Stannis' demise was the worst- which is funny because he was genuinely great in S5 other than the last 3 episodes. Remember how Ramsay "Punished" Bolton managed to take out the supplies of the greatest military commander in Westeros with Ser Twenty of House Goodmen stealthily in the middle of the night which prompted Stannis to burn his own daughter for favorable weather?
Just typing that out draws negative memories. Ugh.
As for this episode, uh LOL for most of it. I don't even know what to say. The Winterfell plot is worse than Dorne because with Dorne, we are dealing with characters we don't particularly care about, this Winterfell plot is ruining three main characters, and it is painful to watch.
I will say dragons saving the day was cool, even though their reasoning for being able to be there is laughable.
The . Worst . Episode . In . The . Series .
Hey man Dance of Dragons was still the worst, this episode was just dumb, that episode was offensively bad with how it exploited a child dying in a horrific fashion for shock value. I have no doubt GRRM planned for a more organic and logically consistent plot towards Shireen's death.