Secondary skills in Heroes 3.

Warrior, mage — doesn't matter, IMHO any hero should know Logistics, Diplomacy, and if possible Leadership... all of this is useful for both classes... well, unless it comes at the expense of necessary mage skills...

But what about the fact that in Tournaments, Diplomacy is often BANNED??

Added after 10 minutes
HEEEY... Am I the only one here who messes around with Anti-Magic?
Logistics - that's a yes!
Generally, I try to adapt to the opponent!
But for some reason, everyone is very surprised when, say, BLINDNESS suddenly doesn't work on Gorgons, for example!;)