The Grandfather - Mythic Unique - Diablo IV Season 15
The Grandfather is a Mythic Unique Two-Handed Sword in Diablo IV Season 15 for All classes. It drops from Duriel, King of Maggots, Andariel (Echo of Andariel), Harbinger of Hatred, The Butcher, Belial, Lord of Lies, Bartuc, Lord of Chaos.
Unique power
Increases your Critical Strike Damage by 120%[x].
Affixes
Indestructible
+Weapon Damage ([103.6 - 172.7])
+% Critical Strike Chance ([3 - 8]%)
Where it drops
All Lair/Uber Bosses loot pool (Mythic)
Horadric Cube: Upgrade Direct Item to Mythic ('Crafted' tag) - S15 recipe
Season Rank rewards: 5 Mythic Unique Caches + up to 10 Resplendent Sparks
Jeweler Rune Crafting produces a random Mythic of the slot (no Crafted tag)
All Tormented Lair Bosses (5 chances at 1.5% each per kill); Greater Lair Bosses 2x rate; Belial highest
Horadric Cube: craft with Resplendent Sparks / Runes; S15: Upgrade Direct Item to Mythic ('Crafted' tag)
Any Lair Boss hoard (every Mythic drops from every Uber/Lair boss at the same rate; no boss-specific Mythic)
Echo of Mephisto: 3.2.1 'Increased overall loot quality for Echo of Mephisto, including a guaranteed Mythic Drop'.