Bulwark
Bulwarks excel in defense and lead the charge of battle. They have many lockdown tools and are massive tanks. With incredible defenses and control. Bulwarks are always first in battle to engage fights.
Guardians
Guardians compared to Bulwarks are defensive tanks. Design to disengage or protect allies in the thick of a fight. They deal great damage and have plenty of lockdown and defensive moves. However they lack significant resistances, but make it up in their abilities.
Assassins
With high mobility and incredible damage. Assassins are made to kill and run out of danger. They lack defense and health, but have many moves when used