Runeword: Holy Thunder - Horadric Cube recipe - Diablo IV Season 15
The Runeword: Holy Thunder recipe in the Diablo IV Horadric Cube takes 1x Common (white/gray) base item of the listed type + 1x Eth rune + 1x Ral rune + 1x Ort rune + 1x Tal rune and produces Holy Thunder (Unique-quality runeword item).
Inputs
1x Common (white/gray) base item of the listed type - Mace/Flail (2 base types)
1x Eth rune
1x Ral rune
1x Ort rune
1x Tal rune
Output
Holy Thunder (Unique-quality runeword item)
Restrictions
Cannot be Tempered
Can still be Enchanted/socketed/recycled normally
Socket count on the base item is irrelevant (no sockets needed)
Both normal and Ancestral base items produce a corresponding runeword variant
Crafted result is not seasonal-flagged and transfers to Eternal, but the input runes are S15 seasonal drops, so post-season craftability is unconfirmed
runewordHidden recipeeternalNew in Season 15
Rune order: Eth Ral Ort Tal. Key effects (one guide client data, some values shown as ranges/placeholders in the source): 50%[x] damage, +20% Life on Hit, Crackling Energy. Discovered 2026-09-16 by streamer DiEoxidE ('Stealth') via datamining/testing - not in official patch notes. 84 total item variants exist across all 19 runewords x compatible base types x normal/Ancestral.