Unit selection advice

Recently have looked to get back into 40k after a significant time away from the system (6th ed.).

I picked up a couple units I liked and am looking to build them out into a small Dark Angel’s force (1k Pts) for casual Pick Up Play.

Doesn’t necessarily need to be super competitive but don’t want something that’s just going to get stomped constantly.

Currently I have: Jump Captain (Non-TH&SS) 5 Jump Intercessors 10 Hellblasters 5 Intercessors Redemptor Dread.

I was looking at picking up Azrael to go with the hellblasters and running Unforgiven Taskforce.

What would be something good to round out the rest of the force with?