Ugly Bastard Helm is a Unique Helm in Diablo IV Season 15. It comes from Harbinger of Hatred (Lair Boss hoard - targeted drop); Any Lair Boss general unique pool / world drop at Torment (chance rises per Torment tier); Horadric Cube: Item Transmutation - Upgrade to Unique (Common base of same type + 1 Enhanced Primordial Dust + 10 Primordial Dust) rolls a random unique of that item category.
Unique power
While Wrath of the Berserker is active, you deal [45 - 60]%[x] increased Fire damage.
Affixes
Strength
Fire Damage Multiplier (Greater) (+14.0 - 24.0%)
Where it drops
Harbinger of Hatred (Lair Boss hoard - targeted drop)
Any Lair Boss general unique pool / world drop at Torment (chance rises per Torment tier)
Horadric Cube: Item Transmutation - Upgrade to Unique (Common base of same type + 1 Enhanced Primordial Dust + 10 Primordial Dust) rolls a random unique of that item category