So I have been rolling with the Mythic DSI/Mythic WF GSR or heroic socket class trinket for destro. Now with the item level upgrades I have a bit of a dilemma.

I am going to be replacing the GSR. The question is, is do I use

Heroic UGoS-436 Int

or

Mythic w/ Socket Prophecy of Fear- 525 Int and 75 Mast gem.

or

Mythic Piston

I know that the ppm on the UGoS is a lot higher and better overall but that is damn near a 100 Int difference and 75 mastery in favor of the Prophecy. I have the class trinket and use it as well etc etc. I am talking for fights where it used to be the DSI/GSR combo. The Piston is a good amount of passive stat, but I have no problem lining up procs etc etc.

I could also push a 6/6 Sandman to 2/2 Valor upgrade, but that seems subpar as is, due to the proc. I would imagine it would be right around 400 Int overall as well, which is less than both the other options, but that is a lot of crit.

I really appreciate the help!