Rogue talent · row 6 of Subtlety, from level 35 (30 with Talented 5/5) · Physical

Quietus

Your Sinister Strike, Ghostly Strike, and Hemorrhage abilities cause 2/4/6/8/10% more damage against targets below 35% health.

Game files · build 1.60.1.70291New in ForeverRead from the WoW Forever beta client, build 1.60.1.70291.

In Blizzard's notes

What Blizzard said about Quietus, each line checked against the files.

Matches the files
Quietus: (New row 6 talent.) Pre-requisite Dirty Deeds. Your Sinister Strike, Ghostly Strike, and Hemorrhage abilities cause more damage to targets below 35% health.
The files Quietus (1310728) is Subtlety row 6, requires Dirty Deeds, and adds 2/4/6/8/10% damage to Sinister Strike, Ghostly Strike and Hemorrhage against targets below 35% health (tooltip).
Quietus Class deep dives: Rogue and Warlock

69876 Sep 16First beta build we archived. No changes in the client files since.