You get this aura in Sol's RNG; Common (1 in 2); Uncommon (1 in 4); Good (1 in 5); Natural (1 in 8); Rare (1 in 16); Divinus (1 in 32); Crystallized (1 in 64); Rage (1 in 128); Ruby (1 in 350); Emerald (1 in 500); Diaboli (1 in 1,024); Sidereum (1 in 4,096); Flushed (1 in 6,900); Lunar (1 in 50,000); Exotic (1 in 99,999); Jade (1 in 125,000); Undead: Devil (1 in 125,000); Celestial (1 in 350,000); Arcane (1 in 1,000,000); Hades (1 in 6,666,666); Hyper Volt (1 in 7,500,000); Sailor (1 in 12,000,000); Chromatic: Genesis (1 in 99,999,999); Abyssal Hunter: Shifter (1 in 400,000,000); Sovereign (1 in 750,000,000)