Which items can't be found from random totems?

[medea_fleecestealer]

Only the sets specific to SR.

Grim Misadventure #174 - Shattered Keepers

Grim Misadventures here with our final 2020 update! Last time, you had your the first glimpse into the new areas being added to the Shattered Realm. As part of our MOAR policy, you’ll be absolutely shocked to learn that the number of new levels has since gone up from 15 to 20! This naturally does not mark the end of our v1.1.9.0 journey. Today, we’d like to unveil the assortment of unique rewards you can hunt down while traversing the Shattered Realm. [SR_Sets] With v1.1.9.0, the Shattered …

Shattered Guardian

Otherwise you’re talking sets like Lokaar’s on Ultimate which is only available if you target farm it, but that’s not in SR.