Diablo 4 mythic unique items drop July 8, 2019 16 32 64 128 Diablo 4 mythic unique items drop rate Diablo 4 mythic items drop rate Diablo 4 mythic items drop Diablo 4 mythic items drop chance Diablo 4 item rarity Diablo 4 uniques Diablo 4 unique farming Diablo 4 item system Diablo 4 loot