Tier 1Tier 2Tier 3Tier 4Tier 5Tier 6Tier 7TypeAccessoryRarityCOMMONSourceCatacombs Master Floor 1Special EffectsGrants +1% ❤Health and ❁Strength while in Master Mode Dungeons.Properties Upgradeable Salable ✔ Yes ✕ No Tradeable Auctionable ✔ Yes ✔ Yes Museum ✕ No Item Metadata Item ID MASTER_SKULL_TIER_1 TypeAccessoryRarityCOMMONSourceCatacombs Master Floor 2, crafting with 4 Master Skull Tier 1Special EffectsGrants +2% ❤Health and ❁Strength while in Master Mode Dungeons.Properties Upgradeable Salable ✔ Yes ✕ No Tradeable Auctionable ✔ Yes ✔ Yes Museum ✕ No Item Metadata Item ID MASTER_SKULL_TIER_2 TypeAccessoryRarityUNCOMMONSourceCatacombs Master Floor 3-5, crafting with 4 Master Skull Tier 2Special EffectsGrants +3% ❤Health and ❁Strength while in Master Mode Dungeons.Properties Upgradeable Salable ✔ Yes ✕ No Tradeable Auctionable ✔ Yes ✔ Yes Museum ✕ No Item Metadata Item ID MASTER_SKULL_TIER_3 TypeAccessoryRarityUNCOMMONSourceCrafting with 4 Master Skull Tier 3Special EffectsGrants +...