IgniRandom Rune is a legendary Runeword created by combining a Igni Rune of Ritual and a Random Rune Rune of Invocation.
How to Create IgniRandom Rune
You can create IgniRandom Rune by adding the legendary Igni Rune of Ritual and the magic Random Rune Rune of Invocation to a two-socketed Helm,
Chest Armor,
Pants, or
Two-Handed Weapon.


Overflow
IgniRandom Rune can not overflow because the Random Rune Rune does not have an overflow effect.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.