They have three (normally) spells to raise charmies.

Animate, for zombies.

C 'greater undead', for mummy early and wraith later (lvl dependant change)

and

c 'lesser golem', for skeletal golem early and flesh golem later (level dependant change).


Level dependant change, means, when you first get c 'lesser golem' you will be making skeletals.

At some point, you will rank, and the next golem you make will be a flesh golem....and you will have flesh golems after that.