You can fit a lot of Orks into a thousand points - that's the primary reasoning behind the Prism.
BS 4 otherwise, they're reliable vs. vulnerable armour, and have great range. If anything I'd take off the fields.
I figure the Falcon's three S8 shots combined with the Dragons ought give me a shot vs. armour, terminators, large bugs, other tasty treats.
The runes were the last ten points - I originally had a spear on 'seer, but needed to shave. We agree on the spear
Wraithlord hurts mobility - he's a
CC anvil but can't be where he's needed. I've never used defend before, but in this case I'll be relying on it pretty heavily.
I've considered dropping Bladestorm a lot, just to free up points. If I drop the runes I can swap out one Avenger's dual catapults and give him Shimmershield/Powerwep, to compliment the Farseer.
Alternatively I could drop all Defend/Bladestorm/holofield and take another basic seer.
Any thoughts on those?