Vayshan in Heroes 5

All Scouts, Assassins and Stalkers in hero's army gain +1 to their Attack and Defence for every two levels of the hero, starting on first level.

Vayshan is famous for daring sorties to Irollan, where he makes grim sport of hunting his Sylvan relatives. The reasons for his hatred are unknown, but his troops share in his obsession. Joining Vayshan for a hunt in the forest lands is an honor for his dark Scouts and Assassins who surpass themselves in the hopes of winning their commanders’ approval.