Originally Posted by
Wareg
What about Avars?
According to "The early medieval Balkans" by John V. A. Fine there were battle between them and Frankish troops in 863, they are also mentioned in 889. I know that It's quite early for this mod but maybe they can be available for few tens of years as AoR unit - in lands of southern Great Moravia and nothern parts of Bulgaria. In Bulgarian army they will be less useful, but they may be a great addition to Great Moravia roster, as cataphract style heavy cavalry (protoypes of Roman ones) or horse archers. Something like Khazar cavalry to Rus roster. What's more they may be the most exotic unit, cause according to Rouran theory they come from lands bordering to China, and large part of this people was Mongolian and Chinsese origin.
If you think that Avars don't fit enough to TGC timeframe to make separate unit, maybe some (small part) of Moravian cavalrymen, within mostly "Slavic" unit, can have more Asiatic features, clothes/armours, decorative quivers and famous braids?