Tier 10.264 source

The parts of this set are Item Level 264, and require turning in the item level 251 equivalent, along with a token gained from defeat of the last boss of each wing: on 25 man normal mode, or 10 man hard mode. Alternatively, the legs and hands drop from Toravon the Ice Watcher in 25-man Vault of Archavon.

The Item Level 251 versions are those purchased solely with Emblems of Frost.

The Item Level 277 versions are upgraded from the 264 versions, with a Mark of Sanctification (heroic).

All three versions count towards satisfying the set bonus requirements.