11 Important Things To Remember About Game Of Thrones Before Watching Season 7
6. Valyrian Steel And Dragonglass Kills White Walkers
Out of desperation, a wounded Jon Snow lifted Longclaw and blocked an attack from a towering White Walker during the massacre at Hardhome. Surprisingly, Longclaw didn’t shatter into a million tiny pieces, and it was instead the White Walker who imploded when the Lord Commander wildly swung his sword and struck him.
In that instant, we – and possibly the White Walkers – learned that they can be defeated with Valyrian Steel along with Dragonglass. Thereon, the most important swords for season 7 and beyond are Oathkeeper, Widow’s Wail, Longclaw, Heartsbane, and the burning sword of Lightbringer.
Yet, it is only White Walkers who are vulnerable to Valyrian Steel and Obsidian. The wights can be fought off with ordinary weapons and fire, but they will continue to be revived as long as the White Walkers remain.