New Trinkets Datamined from the Dawn of the Infinite Mega-Dungeon on the 10.1.5 PTR

wowhead.com:

While we previously highlighted the Paracausal Fragment Trinkets from Time Rifts, another set of trinkets has been datamined on the 10.1.5 PTR. These new time-themed trinkets come with some unique procs and are likely drops from the new Dawn of the Infinite Mega-Dungeon coming in 10.1.5. Paracausal Fragment Trinkets & Time Rift Vendors

These trinkets are currently unable to be tested on the PTR and the exact encounter each trinket drops from is still unknown. We can, however, look at the spell data for more information on their functionality.

Available to all roles, this trinket offers a flat amount of main stat and then a 3-min on-use cooldown that not only gives a decent amount of your highest secondary stat but also a future version of yourself that will cast spells suited to your role. The related spells for this trinket (Mirror of Fractured Tomorrows & Mirror of Fractured Tomorrows) don't offer a lot of additional information as to what these extra spells could be, but there's a lot of potential assuming your future self hasn't developed amnesia.

Besides the flat main stat, this trinket provides a stacking haste buff that culminates in a flurry of strikes based on the number of stacks that you were able to accrue before restarting the stacking cycle. From the associated spell Accelerating Sandglass, you can see that the trinket has a fairly high 15 procs per minute. How long it takes for the hourglass to empty remains to be seen.

'Borrowed' power returns in Dragonflight, but this time it's a play on words of this trinket's effect. This trinket provides main stat and a substantial haste steroid at the risk of a Paradox