Hi does anybody know if Infinity runeword works for cold immune mobs?
Nope, coldimmunes are are likely much higher than fire/light/poison immunes.
Infinity cant break their immunity.
As far as i know only of very few mobs immunity can be broken.
okay thank you for information!
You should know how it works. Monsters can have resists above 100%. yes its looks weird but it Diablo logic. Most ordinary mobs (not uniques) have 100-110 lighting resists. Most Cold immune or fire immune mobs have like 120-150% resistamce.
When any source of reduce resistance applyed to this mobs (conviction or lower resist spell) - its work as 1:5. I.e. infinity conviction aura 12 lvl reduce resistance to -85, but if mob have over 100% resistance, it reduced only to -17% (85/5).
This is why infinity doesn’t remove most cold/fire immunitys.
But if resistance removed below 100% (mob begin to not immune), other sources with lower resist (i.e. griffon’s eye, facets, etc) applyed 1:1. This is why light sorceres like combo griffon’s eye and infinity so much .