Thanos and the Night King were fighting the exact same battle

Warning: spoilers ahead for season 8 of Game of Thrones and Avengers: Endgame.
The morning of Game of Thrones’ long-awaited Battle of Winterfell episode, “The Long Night,” Avengers: Endgame directors Joe and Anthony Russo tweeted a fan-made picture of the Night King and Thanos face-to-face, with the hashtag #WeWannaSeeThisFight. But the truth about the villains — two of the most significant in popular culture this decade and both coming to their biggest, death-filled cla