10 minutes ago, BlodVargarna said:mission cards would totally open up the design space.
I also thought about the idea that each player brings three face down mission cards and then your opponent chooses one. That mission becomes your opponent's mission.
This creates more uncertainty (which missions will my opponent place?!) and doesn't allow you to build a list around a known set of conditions.
From a balancing perspective, and a loss of materials perspective (accidentally walking off with the mission card) I prefer the opponent choosing one of your 3 cards for you to use angle.
You can still build lists around either option - just in different ways. If you bring the missions you might end up with, you'll build a list that can potentially do all three. If you bring the missions that your opponent will use, you'll bring COUNTERS to those objectives. I much rather players be aiming for success than for the opponent's failure.