- For dwarven racial ability, see [Frost Resistance].
Frost resistance is useful in Naxxramas and PvP and vs. some undead mobs that have frost powers. In BC, many of the naga casters use frost spells. The first boss in Serpentshrine Cavern required one tank with heavy frost resistance and two with at least some.
Example Items with Frost Resistance From Original WoW
The in patch 1.11 implemented Argent Dawn Frost Resistance items are a bit hard to obtain but are quite useful in frost based encounters (e.g. Naxxramas)