Battles play out on a chessboard grid that is flat as an Iowa cornfield, but with strategically placed obstacles like rocks and logs. With no strategic advantages given to players that would otherwise gain high ground, it's up to wise players to use those obstacles to protect their flanks and rear.
The key to winning battles comes down to the makeup of your army and the overall badass-itude of your hero. With over 200 skills and 40 different spells, you'll have plenty of opportunity to build up your hero in order to tip the balance during pitched battles. The bulk of the single-player campaign is spent improving the build-out of your army by collecting conscripts and hiring additional units at garrison points. Your hero will gain experience and skills after winning battles, in addition to gaining abilities from artifacts you'll find during your travels.