Suppose I want to join a new unit to my main army, which happens to be named Petrov Raiders. I usually wind up with the minority army name (1st Stone Legion, for example) replacing the name I chose for my main army. What's worse, if the new unit just teleported to my location, it now has no movement points left, and my main army thereby loses all its movement points for that turn. This is, to say it nicely, unexpected and unwelcome.

I disagree with you: teleportation is a very strong feature for the vaulters: they allow instant travel across the map, and, therefore, are something that would be easily abusable if the teleportation kept the army movement. About the army name, yes, it is sometimes an annoyance. To avoid that, always join the smaller army into the main one, and never the other way around...



As for movement loss, the army will always have the movements left of the unit with less movement, so there is nothing unexpected here... It is just something that you just have learned the hard way...



Endless Legend have lots of similarly initially disappointing surprises, but that later on you end up discovering that these are smart choices...