I just thought I'd chime in in agreement with the overpowered nature of Goblin Shamans. That astral attack is really, really nasty and seems way overpowered for their leadership. You really have to target them straight away.
The new orc/goblin units are making the game a bit harder for me this time around. I was really grinding through Verona (Impossible Paladin no losses) having to replay several fights and choosing the easiest ones. But now that I'm in Montero (level 24) I seem to be over the hump a little.
Sigh. I'm back to the old team of Paladins, Inquisitors, Horsemen, Royal Griffins and Archmages. Tried and tested team.