Minecraft wiki entry for Speedrun, associated text: When he does, empty some more slots in your inventory. If you do it right, this process will be quick, so you do not have to worry about your items despawning. Turn a few logs into planks, then craft them into sticks. Trade with the villager quickly by holding the shift key, and spamming the spacebar and left-click. Do this over the slot where the villager sells the emeralds. This will quickly trade your sticks for wood. Once you run out, craft more sticks and repeat. You will probably have a few emeralds to spare. The best choices are arrows and bows- while you can make do without either, having at least half a stack of arrows and one bow will be great. This helps to attack the dragon and shoot at the end crystals.