Seed of Horazon is a Unique Amulet in Diablo IV Season 15. It drops from Grigoire, the Galvanic Saint.
Unique power
Your Demonology Skills deal [0.40 - 0.50]%[x] increased damage per Wrath you have and you take [0.13 - 0.17]%[+] reduced damage per Dominance you have.
Affixes
Willpower
Skill Ranks to Demonology Skills
Where it drops
Grigoire (Lair Boss loot table) - one guide S13 guide