Would be nice if individual Cyndrum demons could be grouped into one unit.  Keeps them relevant later into the game.

As an example, I have five or four death shards in my current game.  My old Cyndrum demon groups were lost in various battles, and now I have these individual demons that don't really do much.  At the games current state, there are no entry level bad guys that they can easily level on, and I don't want to have them hide out behind my mid-game units, waiting to sneak in for that critical killing blow.

Just a thought.