On threat modifiers

[Fue]

2x Global Mod: Shield Oath and Defiance
3x: Savage Blade, Skull Sunder, Shield Lob, Tomahawk
5x: Rage of Halone, Butcher's Block, Overpower

Flash has a hate potency of 495.

Not sure about the hate mod on Steel Cyclone.

Using a self buff generates a flat 70 hate on everything, modified by the global mods.
So Stoneskin for example, under Shield Oath, you would get 140 hate when you cast it, but no extra hate when you get hit and are protected by it.

Abilities that do damage, heal, or generate raw hate, AND apply a buff/debuff do NOT generate an additional 70/140 hate for the buff/debuff portion. So a buff with no damage/healing/threat is worth 70/140, while RoH, Flash, Maim, Storm's Path, and Storm's Eye, all generate damage/aggro first, and no +70/140 later.

Afaik Overpower has 3x modifier so does Steel Cyclone if parsers are to be trusted.

Also Flash scales with stats so its not static 495 potency.