Minecraft wiki entry for Creating_a_challenge_map, associated text: The End can be tough due to the dragon and endermen. If you want to make a course, then direct it the finish portal and add a huge reward at the end. Add something that really helps them in the game like the Strength V, full diamond enchanted armor, a stack of enchanted golden apples, Resistance II, an enchanted bow with arrows, to buy stuff they get 5 stacks of the stuff they need to use to buy and an extra reward for players, they get to keep their inventory! Kill the dragon first or you get spammed.