Natsu is an example of a short range speedy type. These characters have balanced offense and defense plus they are the most mobile class. Grey is built for battle being a short range strong attacker. This group of characters have high defense making them prime battlers.
Wendy is one of the game’s ranged attackers. In Fairy Tail: Zeref Awakens this group is skilled at hitting enemies from far away, but have low defense. Erza is a magic user class and as you would expect this group relies on spells to deal damage.
Fairy Tail: Zeref Awakens comes out for PSP on March 22.