An interesting concept, but a little hard to follow the combat. Maybe color code whose units are whose? Sometimes I would forget which units were mine, and I'd have no idea to tell if I was winning or not until the end.
There also doesn't seem to be a way to merge my 6th unit since I'm blocked from buying a 7th to merge with it.
But it was a very nice way to use the assets, and I enjoyed playing around with it!