Power Boost, what does it do for a Necro/Dark MM?

[Pekiti]

I like the Scorpion Shield in the patron pools, and I see that Power Boost is also an option in the same pool. Would taking PB be of value to a Necro/Dark MM? If I pick it, it will be one of the last powers in the build and be a one or two slot only.

[Uun]

Not a huge amount of synergy, but PB does buff several powers in Dark:

Twilight Grasp: will increase the heal 

Fearsome Stare: will increase the fear duration and the strength of the tohit debuff for the full 20s duration

Petrifying Gaze: will increase the hold duration

 

It will also buff toggles like Darkest Night and Shadow Fall, but only for the 15s duration of PB. Don't worry about slots - PB doesn't need more than 1-2 recharge IOs.