All of the characters in Chain Chronicle have their own distinct Arcana type, and each of these types is color-coded. Red represents the Soldier class, which would be the class you want if you need some strength for your attack. Blue is for the Knights class, which is best on the defensive end. The Archer class’ color is yellow, and obviously you want Archers for ranged attacks. Then you’ve got Wizards (purple) and Clerics (green) that help by casting magic spells and healing your troops respectively.
It isn’t exactly the elemental hierarchy you probably know from other role-playing games, but there is one nonetheless. Warriors are more powerful than Knights, Knights more powerful than Archers and Wizards, and Archers and Wizards more powerful than Warriors. Clerics don’t play into this equation as they’re mainly there for healing purposes.
As your Knights are your defensive units, they should be your first line of defense, but with some Warriors together with them for attack purposes. Clerics should be in the middle, while Wizards and Archers can hit their ranged attacks from the back row.
Your characters can get poisoned in this game, and that means they’ll suffer damage over a certain period of time, while their attack ratings will likewise go down. Blind, for starters, prevents affected units from hitting ranged attacks. Frozen units are inhibited from any sort of action, stunned units cannot defend themselves, and the Slow status does just that – it slows down any affected units.
As the old saying goes – wait, there’s more. The Weak status makes your units weaker (obviously), Seal inhibits special moves, the Skeleton status lowers affected units’ overall stats, and last, but not the least, Cursed units take extra damage when they get hit by an enemy.
Fortune Rings are sort of like a premium currency, as they can be used to buy special items. You’ll get to earn them by completing the daily quests, or as a reward for logging in at least once every day. Additionally, you may get them in event quests, though the chances of doing so aren’t that high, and you can also get Fortune Rings by selling cards with three to five-star ratings.