The Gothizzar Harvester is a murderous juggernaut of bone and metal that can smash through a shieldwall without breaking stride, but also a collector of the dead, its role to is provide as well as to destroy.
The Soulreapers are the most destructive members of the Mortisan order. It is their role to cut the souls from the enemy with their magical scythes, though at need they can discharge a blast of captured spirit energy to destroy nearby foes.
The Boneshaper's art is that of creation, not destruction. Though their ossified talons can rake through flesh, and though they can summon a gale of sharp bone splinters at will, they focus their efforts on regenerating the Ossiarch regiments around them.