Warriors excelling at single physical attack, can be transferred to Knights and Archers who are usually used to kill the escaping enemies at the back of the map because of their fast speed and wide attack range.
Gunners are physical AoE attackers with slow speed and a strong killing ability. They are always used in front of a stage and can be transferred to Engineers with stunning effect.
Sages are magic AoE attackers with a strong killing ability. They can be upgraded to Flame Seers which can burn the enemies in a range.
Mages are a class with fast speed and wide attack range, excelling at magic attack. They can slow enemies’ attack speed and electrify them if they’ve been upgraded to Lords with ice attribute.