Centurion class can order commands to other characters.
If players participate Formation, then the characters' control will be controlled by Centurion until they go out of Formation. Formation can be changed into various types depending on various situations and each type of formation has its own unique characteristic.
For example, Winged Formation which surrounds the enemies and concentrate on firing on those enemies, is effective when you are facing with a huge boss, and Phalanx which temporarily gathers all Blocking stats to the players in the first row is effective when you are facing with multiple enemies at once.
http://www.tosbase.com/game/classes/C...