glad you had fun!!! Now to the list
First off I wouldnt drop the agoniser, as personally I think they are way better than the venom blade (although some here would disagree...) but the blast pistol is almost useless with her. Sure its nice to have an accurate darklight shot, but to use it you have to be too close, and if it explodes... thats the end of your wych squad anyway.
As for the warrior squad, true, if the Dark Lance MODEL moves, then you have to snapfire it. While that is better than we had before, I would atleast drop it for a splinter cannon, as since then you have 15 more points to play with.
The reavers are fine.
Now if you drop both, you have 30 points to play with. First I would buy a Hekatrix w/ venom blade (because its cheap) for your wych squad. That increases their damage output almost exponentialy. After that I would add a phantasm grenade launcher to them. Having stealth within 8" can save a wych's life from overwatch or random shooting (also remember stealth adds up with coversaves, so they have a 4+ in area terrain from anything within 8") That leaves you with 5 points... to which I would either A: add haywires to the Succubus, or B: Add splinter racks to the warrior raider. Which is better is your choice tbh, but remember the splinter racks dont work with the cannon or blaster