Early game armies and unit upgrades
Just a few questions.
1. Unit upgrades per city like all units trained get +2 defense, does that affect units already trained there or does it simply make previously trained troops inferior.
2. I feel like I am waiting too long to build an initial troop and secondary army for my other champion for clearing. Can I get an idea of what a starting army should be comprised of and how long I should wait (I have been waiting till after I have a fortress/forge/barracks and its usually 2defenders/2spearman/Militia
3. Finally I don't really understand the value of the magic tree. Like when its useful and how id use it.