Stone of Vehemen is a Unique Totem in Diablo IV Season 15. It comes from World drop (any difficulty, drop rate scales with Torment tier); Dedicated drop: Echo of Varshan (Lair Boss, Torment 1+; Boss Trophy: Malignant Heart); 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
Gain 40%[x] to All Resistances while channeling Stone Burst. Stone Burst's final explosion deals [250-300%][x] bonus damage split between all targets caught in the blast.
Affixes
1,727 DPS; 1.10 Attacks per Second
+[1-3] to Stone Burst (1-3)
Where it drops
World drop (any difficulty, drop rate scales with Torment tier)
Dedicated drop: Echo of Varshan (Lair Boss, Torment 1+; Boss Trophy: Malignant Heart)
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 Malignant Heart (Boss Trophy) rolls a Unique from this boss's pool; can roll Mythic quality with the 'Crafted' tag