Heroes 5.5 WarGame Edition - Tactical Edition.

ideally, we could take the bones of a regular Necrodrake and assemble them, adapting them to the animations of the Twilight Drake.

Added 10 minutes later
I also had an idea to completely abandon all dragons, because we buy them on the same level as ordinary peasants, like domestic animals - the only question is the price and the increase. So, I was thinking about replacing the Tier 4 dragons with Hydras (we could put Manticores in their place), Tier 5 dragons with Phoenixes, Necrodrakes with Umberwolves (and put Death Knights in their place), and Gnomish Dragons, probably with Tanaruks (I haven't had many ideas for this one yet). Ultimately, I tend to see a DRAGON closer to Smaug or Balerion, and in a quantity of one or two, rather than 10-20.