Terror Zone play can provide Sunder Charms that let a character damage enemies with a previously blocked immunity type, though the exact drop rules depend on the current D2R version.
PC / Global, Reign of the Warlock content where available
WHERE & HOW TO FARM
Where to farm
Eligible Terrorized monsters in Hell difficulty, including active Terror Zones; in Reign of the Warlock content, Herald encounters may also be relevant under current rules.
Use this as a targeted Terror Zone gear search only after confirming the live rules for your edition. The evergreen method is to farm eligible terrorized monsters and inspect charm drops; current Herald or charm variant mechanics can change by patch, so follow in-game item and encounter behavior rather than assuming older drop details.
Eligible Terrorized monsters in Hell difficulty, including active Terror Zones; in Reign of the Warlock content, Herald encounters may also be relevant under current rules.
Unlock Hell Terror Zones for the character.
Have a build that can clear eligible monsters safely despite immunity matchups.
Confirm which Sunder Charm variants and drop sources are active in the installed game version.
Rate not listed
Related guides
More guides for gathering materials and making progress.