1 stack of red dragons + invisibility (plus enhanced by a new legal cheat that extends the duration of spells) + glutton armor (which, as far as I know, hasn't disappeared?) + Armageddon = total destruction for everyone (well, maybe except for those who have a lot of "cacti" in their army) without any effort.
Added 4 minutes later
I think more posts about King's Bounty have been written in this thread in the last two days than in the corresponding forum section in the past year xD
To sell my soul