Minecraft wiki entry for Hardcore_mode, associated text: Plan to collect 16-20 ender pearls and turn them into eyes of ender. Remember to be conservative while using them, as sometimes they will break when thrown and sometimes they won't. After locating the End portal, dig a staircase carefully downwards. Once inside the stronghold, break the silverfish spawner and pillage the place. Secure a shelter near the portal to prepare for the End.