Possession

 provides a large margin of utility and polyvalence. Depending on what and who you have aboard, you can be a, a , a , or even possibly a / murder machine.

Synergies
You strongly benefits from : more drones means more opportunities to possess one, more upgrades mean more skills, and they cn use their to send a drone to you. They are your access to, , and a hunter-killing-only with a 99% base hit chance.
 * Plus, their bonus proficiency for the will be appreciated.
 * If you get access to a pilot drone, you could probably benefit from and 's  and 's  points.

In addition to those, could grant an additional 1  per heal to your. The has to be in the same room, but if you're the, you can benefit from your own help.

Presumably, you could benefit from and  for their free actions, regardless of the lack of actions they grant.

New actions
While possessing:

Possession targets
Drone upgrades each grant several bonuses:
 * Hauler: the skill and +2 inventory slots
 * Firefighter: and extinguish action
 * Turbo: and
 * Pilot: and shoot, launch, and land actions. You get a 99% base hit chance.

The Medical Assistant Bot’s grants and comfort.