Mages – their development.

Jalib, check out the thread "Counter-heroes in duel mode"; it describes various tactics for mages, and there are replays available. However, the heroes in the duel are not quite typically geared for mages.
Regarding the choice of a hero for a strategic map: Hafiz, Nurah, Orac, and Razzak are the best. The first two are good for a quick start, while the other two flourish over time. Nazir is also good at the beginning, but he is predictable for the opponent. Faiz is an outsider for me (his special ability is not very useful).