If your campaign includes the feature of transfering a certain number of your strongest heroes, then consider to actually have this number of heroes at the end of a mission. Preferably buff them up, using experience obelisks and various +whatever buildings. During the main gameplay of the map, use one primary hero to clear everything. A general way of arranging your units in large Hero v Hero matches is to put your ranged units in the corners, with your slower units to protect them, and your faster units in the middle. For Certainly, you want to have a dominant one, with the best stats, skills, magic and artifacts, but he definitelt cannot be in all places on the map at the same time. Use the other heroes to collect resources, gather units and create chains to bring those units to the frontier where your main hero is fighting for glory! Edit: also! K9O0.

heroes of might and magic 3 tips