Scattervine is oppressive and really not fun to play against. I think it either needs one less point of health or one more cinder cost to its ability. With either of those changes I would be fine with the unit. As it stands, the unit gives so much value and is extremely hard to counter on the timetable where it becomes a problem.
Other than this one thing I have been really impressed with the balance of the game. This unit is just ruining it I feel.