Kilt of Blackwing is a Unique Pants in Diablo IV Season 15. It comes from World drop (any difficulty, drop rate scales with Torment tier); Dedicated drop: Echo of Urivar (Lair Boss, Torment 1+; Boss Trophy: Judicator's Mask); Horadric Cube: Item Transmutation (Upgrade to Unique) - Common item of the same slot + 1 Enhanced Primordial Dust + 10 Primordial Dust (random Unique of that slot).
Unique power
Ravens deal [80-100%][x] increased damage and Shapeshifting into a different form or activating a Companion Skill Summons a Raven that attacks nearby enemies. Summoning a Raven has a chance to call forth an Unkindness for 10 seconds, increasing the number of Ravens Summoned to 3 for the duration.
Affixes
1,500 Armor
+[1-3] to Ravens (1-3)
Where it drops
World drop (any difficulty, drop rate scales with Torment tier)
Dedicated drop: Echo of Urivar (Lair Boss, Torment 1+; Boss Trophy: Judicator's Mask)
Horadric Cube: Item Transmutation (Upgrade to Unique) - Common item of the same slot + 1 Enhanced Primordial Dust + 10 Primordial Dust (random Unique of that slot)
Horadric Cube: Item Transmutation (Amalgamation) - 5x Judicator's Mask (Boss Trophy) rolls a Unique from this boss's pool; can roll Mythic quality with the 'Crafted' tag