For example, critical hits are modified by luck at a basis of 1% per luck I believe. Can anyone clarify the game mechanics on luck, and the bonus damage luck brings in?
As for stronghold gaining only half of the stat buffs, well that is correct. That is called balance, and I'd have to say that starting a game on a large map you wouldn't even miss having those prime stat boosts. The only place it actually affects balance is in duels, and as far as I know that is what you are complaining about. When I've played a shaman on a large map I have great early games, which skyrockets me to great late games. By the end of the game I have so many boosts from artifacts prime magic boosts do not matter. I'm sorry to say but having access to light and dark magic is greater than having prime magic. Also shamans are more of a hybrid class, as strongholds creatures hardly benefit from magic power. Level one stats of a shaman start out with 3 might power so this should be apparent, (lol), that they are going to not rely on there magic as much as any other factions mage would.