Seer Desk
From Paragon Wiki Archive
The seer desk adds 100 control to the base for the cost of 100 power. It will cost you 300,000 prestige after you make it to place it in your base. Its a relatively small add on making it ideal for space verses amount.
Caution. This add on is only going to work with the orbits of control. It will not attach to the Mystic adviser. I found out the hard way.