Anti-Climax Boss: Given that Bloodraven is completely immobile by being tangled in the weirwood, he doesn't put up much of a fight when Tormund comes to his cave to kill him.
Complete Monster: Brynden "Bloodraven" Rivers is the entity responsible for the ending depicted in the show. Learning that Jon Snow was the Prince that was Promised, Bloodraven began slowly draining Jon of the magic in his blood and siphoning the magic into Daenerys Targaryen, then arranged for dragon eggs hidden in the Winterfell crypts to be sold to Illyrio Mopatis, knowing both that he would give them to Daenerys, who was not equipped to handle them. Luring Bran Stark to his cave Beyond the Wall, Bloodraven used the White Walkers' attack on his cave to hijack Bran's body and disguise himself in Bran's skin so he could return to Westeros. When Jon was resurrected with a Damaged Soul due to Bloodraven's tampering with his blood, Bloodraven engineered events in Westeros, ranging from the Long Night to the destruction of King's Landing, to create a situation where the last Targaryens would wipe each other out, the "winner" would be exiled, and Bloodraven would rule for all time, a situation so undesirable that the Gods interfered by sending several characters back in time to undo Bloodraven's damage.
The fanfic starts off with the fan theory that Bran (or rather, Bloodraven) manipulated everything taking place during the show just so he could rule Westeros.
Reviewers have speculated that other characters that are not POVs may also have their memories from the old timeline, particularly Littlefinger, Stannis, and Renly.
A large part of Jon and Lysa Arryn's subplot is based on the fan theory that Robin is actually Littlefinger's son.
