Before the Night King died, Viserion attacked Rhaegal, the dragon Jon was riding. Here's what happened to the ice zombie dragon during the Battle of Winterfell. Note: If you’re here, you probably know what happened in Game of Thrones, but regardless, better safe than sorry. Daenerys did something rash and heroic again on Game of Thrones, but this time paid a terrible price. Did Viserion die on Game of Thrones season 8 episode 3? A little insight into why he was killed off. Game of Thrones taught us a key lesson way back in season 1: “Fire cannot kill a dragon.” It turns out that an expertly-thrown ice spear by the lord of the undead can … or at least force the dragon into icy-cold water and drown it. It was hard to see Viserion dying last night in Game of Thrones Season 7 episode Beyond The Wall. Spoilers follow for Game of Thrones season seven, episode six, “Beyond the Wall.”. In Sunday's episode, her dragon Viserion died on Game of Thrones — at least for a moment or two. There were also a few scary moments with Dany's other, very alive dragons during the episode. Spoilers abound.