What unique thing from uniques and omeg system would you like to keep after rework?

Uniques and Omega System are going away soon.
I think it's a good thing to tell devs what we like and what we would like to see transplanted somewhere else after the change.

For me:

1. Extremis part of the Nanotechnology Page. Fire, speed and summoning mind controlled Iron Man Suit. I love it. It could be redone to even more represent that concept.
2. Badoon Soldier's "The basic weapon". If there still will be basic powers after the change item that can make them viable but not boosting so much other powers would be a nice option for other builds.
3. Doomsaw. Item that gives a lot of one thing and nothing else. Dedicated for specific builds and niche usage.
   4 .44. Some other forms of randomnes. Like "one of every six attacks deals critical hit" or "1% chance that your brutal hit will become leathal hit dealing x3 dmg".
4. Summons. Thor summoning Sif. Rogue summoning Gambit. Wolverine summoning Sabertooth etc. Some of those could have place somewhere else.

For me that's it.
What do you think is unique and worth keeping after the change?

From comments:

1. Psionic Overload - Risk reward options. Mind Over Matter.
2. BFG - Big F-ing Gun and not because of the stats but the ball it shoots.