I've only reached early chapter 3, so here are my early impressions. It's grid based, you recruit units. You can assign heroes who cast spells, your units also have abilities. Archers can get rapid shot(better pick it when you level up, it's that good), Hellknights and Paladins can smite. etc (Paladins can also heal) So far from what I've played the four units we have available is Hellknights, Paladins, Infantry and Archers. Infantry is you standard meat shield, Hellknights are your bruiser up front fighters and paladins are more or less support with good melee capabilities. Archers are your dps, so far Archers are so good that I'm mainly spamming them along with Hellknights. So far, what makes the mode interesting to me is the enemy variety, since you fight enemies in the game, they also can cast spells. So I expect the higher tier fights to be pretty interesting, instead of the face-roll early game battles. Also, clearing certain battles rewards you magical items and exp.