I'd consider putting in some Saruman's Ambitions. I know it kinda clashes with the Saruman's Powers, but you could always just make it a point to use the Ambitions before you power, or you could just decide that it's worth losing them in order to take out your opponent's conditions.
The reason I say
Saruman's Ambition is because if you get 2 in play, your
Hate and Angers will be free. Being that you've got a swarm goin' on here, saving 2 twilight from
Hate and Anger means getting another minion out (or perhaps even two). Then, you can use those Ambitions to win skirmishes and/or get overwhelms. It's got all sorts of great options!
Uruk Regular is also something to consider, unless it's banned in Fellowship block or something (I don't play Fellowship block, so I don't know).