Combine Units - Large animal with saddle for a few archers/wizards?
OK, not a totally new idea but in the film lord of the rings there are giant elephant type creatures with saddles/platforms.
Would it be possible to create something similar?
ie; You have a new single creature, let's stick to elephants for the sake of this example but could be anything, which can move towards the base and do it's own attacks banging and smashing what it comes up against - but in addition to this let's have the ability to place Archers or Wizards on it's back. This way they can also be doing damage at the same time.
Should the beast die in battle then any troops it's carrying can be dropped and just carry on attacking as normal
Could be a good way to mix regular troops with DE troops