Battle Towers is a mod that adds towers all over the minecraft work with 10 floors each. Each floor has a chest, though most have mediocre loot, the top few chests contain decent-good loot (Highest being diamond blocks, sometimes in multiples). At the top of each tower, there is a golem. The golem has very high HP and does a lot of damage. You cannot loot a chest on the same floor as a golem, and the golem will always drop diamonds, among other things. For more info about the mod, see the Minecraft Forum Post .