Yep, that makes sense for the general mutations, sounds good for that overall.
I didn’t understand the idea of locking away warriors to use for actions. I thought that the number of current mutations you had available controls your actions. I’ll need more explanation on that mechanic, because it sounds like, based on your comment, it will be very easy to get a high action economy, while I thought it was tied to mutations, not sacrificed warriors. That entire interaction was unclear on the board. When I said limited warrior count, I referred to the fact that it will be hard to recruit warriors, getting them from supply to board, as it takes a whole action for only one warrior, that was my concern