So, gotta say that this is pretty good. It's your standard turn-based tactical RPG akin to Fire Emblem and Final Fantasy Tactics, however it's pretty simplified. Not a bad thing, but if you're looking for a super robust combat system, you'd be better off with a different title.
Where the combat lacks, the other mechanics shine and make the core gameplay slightly more interesting. Each campaign takes place on a dungeon map that has new landmarks appear as you progress. You can go about the map in any order, however combat sections must be done if you want to progress further down that line. As you collect relics and level up your fighters, you'll be able to choose different skills for them to take. There will be three to choose from, and they can range from increasing your attack range by 1 tile, or giving your attacks a chance to heal you for a percentage of the damage they do.