I've played a few games with Ankaur Maro as a hero now and two of them I have been trounced, and one of them has been a narrow, VERY narrow defeat...(actually I may have lost handily that game as well but I don't remember). This has solely been as the support build Maro by the way.
1) Heartseeker is nice, but I played him FAR too defensively with it and (you'll see in my pitiful performance in the battle report coming up) he only was ever able to make one or two shots in the BR game, I think he killed a single horse.
2) He raised 4 trays, and with regenerative magic never actually healed a wound since I was too defensive to regularly attack and with that one attack I rolled no surges and didn't dial in one...so that was a waste.
3) He moves really far, but I never actually moved him more than twice...once again, I'm too defensive.
My list had 2 2x1's of archers, one I embedded in the stonghold terrain and kept them there for 4-5 turns. Where once again I was far to defensive and didn't shoot anything because nothing moved in range, and it wasn't until I had shifted them out of the terrain were they able to shoot things, when they did shoot they did their job well. My other archers became a tarpit for a 3x2 cavalry charge (Hawthorne's ability is scary...) so they were the recipients of Ankaur's special ability I added 4 trays, it made them hold up cav for 2 rounds.
I brought a 2x2 of Oathsworn, they hit hard killed some dudes, then died. It took several turns to get them into position and the charge didn't go as well as I had hoped. My opponent was better at predicting my movements than I was at predicting his. Something I really need to work on. The spearmen they hit, returned the hit on init 7 with an action to make hawthorne hit from dispatch runner. Hawthorne's damage isn't as terrible when he is only engaging one enemy.
The reanimates, with Lingering dead, they were a target that Kari ranged attack a lot but only ended up actually killing like 2-3 per turn, the downside of the Reanimates was that Kari on her first hit offed my necromancer...I still have not been able to use that guy...So Lingering dead is awesome, it really helps the survival of that unit...Once again though too defensive with this unit and they only got one attack and at that point they were only one tray...oh well...
So after a few games, I think I need try out violent forces Maro, I think for what I want Maro to do I would be better off have him as an upgrade... and play a lot more aggressively.