A fun combination of Bejeweled and RPG gameplay.
As you progress through the story you meet special individuals called Companions. After you complete their initial questline the companion will follow you throughout your journey, and provide a bonus to your battles like dealing an immediate 10 points of damage to an Undead enemy right at the start of combat, or the chance to backstab an enemy for 20 damage. Alongside the Companions are Awards, which you get for completing difficult quests, and which give you permanent bonuses such as a bonus to a skill such as Morale or Battle, or a bonus to the mastery of an element(which lets you collect more of that color mana).
All in all this game is amazing, I've spent a lot of time playing the DS version alone, and I would definitely say this game is addicting. This is a must-buy for puzzle fanatics, but even casual puzzlers or RPG fans might want to give this one a look.