Trade Mob Heads for Masks (Abilities and Bonuses) /mask You get masks by collecting mob heads /mask All mask bonuses are carefully crafted to give bonuses YOU WANT bonuses like % Double Crate Rewards , Better Ore Generator, Double Ore Drops. There are 11 Masks we will be releasing masks for all mob heads. There should be around 20-30 masks created this week. We've introduced Mask Crates as well, with a 1% chance on vote crates they're available in our store. What are some Masks and Bonuses you would like to see added?