Add Affix - Horadric Cube recipe - Diablo IV Season 15
The Add Affix recipe in the Diablo IV Horadric Cube takes 1x Common/Magic/Rare/Legendary item with room for an affix + 1x Coarse Primordial Dust + 5x Raw Primordial Dust + 1x Tuning Prism (any) and produces same item + 1 random affix.
Inputs
1x Common/Magic/Rare/Legendary item with room for an affix - must have an open affix slot
1x Coarse Primordial Dust
5x Raw Primordial Dust
1x Tuning Prism (any) - optional; narrows the affix category of the new affix
Output
same item + 1 random affix - Can raise the item's rarity if it had no affixes before