Shadow is great to, a bit unpredictable with all those corsairs and southrons with Grima (Saruman's Power) and Golum (Evil-smelling Fens) splash.
More predictable than you might think; I've got a lot of experience playing with this shadow, and once you get the hang of it, it is super easy to set up and works against a wide variety of strategies.
And i think that with 4x Úlairë Enquëa, Lieutenant of Morgul you dont need 3x Morgul Squealer, mainly because you dont have any wraith minios in your deck.
The power of the shadow is its ability to swarm, so it is extra bonus important to keep your opponent's fellowship down to about five. with that much Shotgun floating around, that shouldn't be hard to do.
Maybe Far Harad Mercenaries or Southron Commander would fit better if you want additional crowd control.
Both of those seem weaker to me than just more Shotgun.
Last time we played i didnt see 4x Power According to His Stature in deck, is that new?
Nah, that's pretty standard. I think that's in every version of the deck. It's a big deck though, so it probably just never came up.