The Ambush Passive in might is pretty handy I find. I haven't fully explored the deeper might abilities since I have been having more fun trying out the magic spells.
Custom games are fun, however you hit a point where pinning down enemy heroes is really fucking hard, and unless you have a specific item (shackles of the something something) you cannot prevent them fleeing unless they outgun you. So you end up doing whack-a-mole for a little bit longer than is fun. Otherwise all good. I'm playing the sanctuary campaign (Japanese Fishmen) and enjoying it, although it's annoying that none of the dynasty stuff works offline...
I've ended up asking Steam for a refund on this. Good game, but easily one of the buggiest launches I've ever seen and 3 weeks after release it still hasnt been patched. Some of the bugs are minor (abilities don't work, or the AI doesn't use certain abilities ever despite them being really good), but some are pretty major(vanishing Dynaasty weapons), and some are completely game breaking. (pick the wrong class in the previous mission = impossible to complete the next mission).
The communication and speed of response has just been terrible. I understand you farm these games off to eastern european studios to lower development costsandmakethem profitable, but you cannot ignore CS at the same time. Might pick it p when it's on sale - am using the time to finally play through Heroes 5 instead for the first time.
Finally had my first 'boss' fight and it was kind of anticlimactic (orc campaign). Pretty much overwhelmed it easily, maybe some of the others are more challenging.
The Transcendent One: AH... THE ROGUE CONSTRUCT. Nordom: Sense of closure: imminent.
The orc boss fight was one of the weaker ones. Think the Necromancer boss fight is the most difficult (well, aside from the ending which I haven't gotten around to getting to)