As I was considering the value of the 8 activation lists and how going last tends to be so good, it dawned on me that there is already a command card that says "You get to go last this round." That card is Sit Tight.
For the most part, I think everybody forgot about this card after the pass rule was introduced, but I wonder if maybe it is actually worth playing?
In round 1, you would be playing it to make sure you get that precious last activation of the round. In later rounds, assuming you aren't just blowing each other up as fast as possible, you can use it to jockey for position just like in round 1.
I'm going to have to try to fit this into my next decks to test it out, depending on the list. Maybe it will work best in imperial where you can always toss it to Zillo?