Take a glance at one of Rift's new Master Mode dungeons on the test shard.
Trion announced at Gamesom that Patch 1.5 would contain a new level of dungeons: Master Mode. Intended to be a step up in difficulty from the Expert Mode dungeons, they require gearing comparable to being able to participate in Tier 1 raiding, as well as a high level of coordination and communication. On the Public Test Shard the loot was all of Tier 1 raid quality and included Marks of Ascension.
Below you'll see ZAM's video preview of Darkening Deeps in Master Mode. This includes a new, extra boss encounter, and various additions to traditional mechanics. Standard disclaimer: remember, anything on PTS may change before it goes live.