Not as great as the previous two but still just fine. Combine soul blade (more INT = more crits +restores 20 SP per crit) with bloody rune (80% higher crit rate when maxed) and vampire rune (coverts 25% dmg dealt to life), and you're invincible and can take down armies almost instantly when used with the "north wind" skill (20% magic dmg to all enemies). This is the only exploit I found, though I'm sure there are plenty considering I only did one playthrough as one character from one faction.
Honestly, this game has lost all the charm of the previous titles. It's still OK, but nowhere near as pleasing, both visually, and in terms of gameplay. I'd rather have another version of 2 or 1, except with a much larger map, maybe more kingdoms, and perhaps a sleeker recruiting mechanism. Everything else was fine the way it was.