Black
3 sockets · Club / Hammer / Mace · Level 35 · Patch 1.10
All runes · Rune #16 of 33 · Required level 35
The Io rune can be socketed for the bonuses below or saved for a runeword. Its effect depends on the equipment slot; a rune by itself does not create a runeword.
3 Hel Runes + 1 Chipped Diamond → 1 Io Rune
3 Io Runes + 1 Flawed Topaz → 1 Lum Rune
Place the listed ingredients in the Horadric Cube and transmute. Upgrading consumes those ingredients; check your planned runewords before spending runes. View all rune upgrade formulas.
Reference farming areas from the app:
Rune drops depend on difficulty, monster or chest type, and game settings. These are farming suggestions, not guaranteed drops or a fixed drop rate. The Countess's special rune table reaches Ral in Normal, Io in Nightmare and Ist in Hell; her ordinary item drops are a separate table.
15 runewords in this database use Io. Follow each link for the full stats, compatible base types, sockets and patch requirements.
Previous rune: Hel · Full rune list · Next rune: Lum